Epistles of the Brethren of Purity : the Ikhwān al-Ṣafā' and their Rasā'il : an introduction /
El-Bizri, Nader.
Institute of Ismaili Studies.
Oxford : Oxford University Press in association with The Institute of Ismaili Studies,
2008.
Includes bibliographical references (p. [279]-298) and index.
Ikhwān al-Ṣafā'.
Epistles of the Brethren of Purity.