| A Re-examination of Al-Mahdi's Letter to the Yemenites on the Genealogy of the Fatimid Caliphs, | Hamdani, Abbas. | English | Bibliography |
| A Reconsideration of al Qadi al-Numan's Madhhab | Poonawala, Ismail K. | English | Bibliography |
| A Reconstruction of the Fatimid Theory of State: The Apocalyptic Nature of the Fatimid State | Van Ess | English | Bibliography |
| Rasail Ikhwan al Safa' in the Literature of the Isma'ili Tayyibi Da'wa | Hamdani, Husayn F. al-. | English | Bibliography |
| Rashidu'd-din Sinan | Ivanow, Wladimir. | English | Bibliography |
| Razskaz shugnanskikh ismailitov o bukharskom sheikh Bekha ud Dine | Semenov, A. | Russian | Bibliography |
| Reading Global Islam Through Messianic Renewal in Dasavatar | Purohit, Teena | English | Full Text |
| Recherche sur l'initiation à la secte des Ismaéliens | Sacy, S. de, Baron. | French | Bibliography |
| Recherches sur l'histoire et la littérature de l'Espagne pendant le Moyen âge | Dozy, R. | French | Bibliography |
| Recht der Ismailiten, | Strothmann, Rudolf. | German | Bibliography |
| Recollections of the Druses of the Lebanon and notes on their Religion | Carnavon, E. | French | Bibliography |
| Records from the Cairo Geniza. | Goitein, Solomon D. | English | Bibliography |
| Recueil de textes inédits concernant l'histoire de la mystique en pays d'Islam | Massignon, Louis. | French | Bibliography |
| Redefining Muslim Women: Aga Khan III’s Reforms for Women’s Education | Khoja-Moolji, Shenila. | English | Full Text |
| Redefining Muslim Women: Aga Khan III’s Reforms for Women’s Education | Khoja-Moolji, Shenila. | English | Full Text |
| Réflexion sur l'Imâmat de Aaron, Eléazar et Phihées. | Tajdin, Nagib. | French | Full Text |
| Réflexion Sur L'Imâmat De Melchisédech Et Tèrah. | Tajdin, Nagib. | French | Full Text |
| Relation between Persia and Egypt under Islam up to Fatimid Period. | Guest, A. R. | English | Bibliography |
| Relation between the Fatimids in North Africa and the Omayyads in Spain during the 4th Cent. A.H. | Hassan, H. I. | English | Bibliography |
| Relation d'une insigne imposture littéraire découverte dans un voyage fait en Sicile en 1794 | Hager, Joseph. | English | Bibliography |
| Relations of the Orders of the Assassins with the Crusades during the Twelfth Century. | Schafner, David. | English | Bibliography |
| Religion of My Ancestors - Islam | Aga Khan III, Sir Sultan Mohamed | English | Extract |
| Religion-Partein und Philosophen Schulen | Sharastani, Abdul-Fath Muhammed al-. | English | Bibliography |
| Religious Leadership and Social Change in the Ismaili Khoja Community | Ahmed, S. S. | English | Bibliography |
| Religious Leadership and Social Change in the Ismaili Khoja Community | Ahmed, S. S. | English | Bibliography |
| Researches into the Religions of Syria | Wortabet, John. | English | Bibliography |
| Reshenie osnovnogo voprosa filosofii Nosiri Khisrov (Na analiza filosofskogo traktata Zad al-musafirin) | Ashurov, G. | Russian | Bibliography |
| Révélation et vision véridique chez les Ihkwan al Safa | Marquet, Yves. | French | Bibliography |
| Review of: Kitab Ikhwan as-safa' | Diwald, Susanne. | English | Full Text |
| Ritual and Daily Life: Transmission and interpretation of the Ismaili tradition in Vancouver | Dossa, Parin Aziz | English | Full Text |
| Ritual and Symbolic Aspect of Islam in African Contexts. | Nanji, Azim. | English | Bibliography |
| Rituel sabéen et exégèse ismaélienne du rituel | Corbin, Henri. | French | Bibliography |
| Role of Damascus in the History of the Crusades | Fink, Harrold S. | English | Bibliography |
| Role of the Late Aga Khan as a Leader of the Muslims of the Subcontinent in the Political Field | Alidina, Sherali. | English | Bibliography |
| Role of the Late Aga Khan as a Leader of the Muslims of the Subcontinent in the Political Field | Alidina, Sherali. | English | Bibliography |
| Rukopisi proizvendeniy Nizari, kratkie soobshcheniya | Baiburdi, Ch. G. | Russian | Bibliography |
| The Racial Origins of the Druzes. | Izzeddin, Nejla M. | English | Bibliography |
| The Rasail Ikhwan al-Safa in the Ismaili Literature | Hamdani, Husayn F. al-. | English | Bibliography |
| The Reign of Hakim Bi amr Allah | Sadik, A. A. | English | Bibliography |
| The Reign of the Fatimid Caliph al-Mustansir bi'Allah: a Discussion of the al-Onaprigi Account Given in the `Itti'az al-Hunafa'. | Kessler, P. E. | English | Bibliography |
| The Relation between Sufism and Philosophy in Persian Culture | Nasr, Seyyed Hossein. | English | Bibliography |
| The Relation Between the Druze Faith and OtherReligions | Abi-Khzam, Sheikh Anwar F. Ph.D.Prof | English | Full Text |
| The Relation of the Buwayhids with the Fatimids. | Kabir, M. | English | Bibliography |
| The Religion of the Ismailis. | Fyzee, Asaf A. A. | English | Bibliography |
| The Religions of Modern Syria and Palestine | Bliss, F. J. | English | Bibliography |
| The Revolt of Aga Khan Mahallati and the Transference of the Ismaili Imamate to India | Algar, Hamid. | English | Bibliography |
| The Revolt of the Agha Khan Mahalatti and the Establishment of the Nizari Imamat in India. | Eboo, Nadia. | English | Bibliography |
| THE RISE AND DECLINE OF THE FATIMID EMPIRE. | Virani, Hanif. | English | Full Text |
| The Rise of Extremist Sects and the Dissolution of the Fatimid Empire in Egypt | Van Ess | English | Bibliography |
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