Lewisohn, Leonard (1999). "An Introduction to the History of Modern Persian Sufism, Part II: A Socio-Cultural Profile of Sufism, from the Dahahbi Revival to the Present Day". Bulletin of the School of Oriental and African Studies, University of London. 62 (1). ss. 36-59. doi:10.1017/s0041977x00017559. JSTOR3107388.
Lewisohn, Leonard (1999). "An Introduction to the History of Modern Persian Sufism, Part II: A Socio-Cultural Profile of Sufism, from the Dahahbi Revival to the Present Day". Bulletin of the School of Oriental and African Studies, University of London. 62 (1). ss. 36-59. doi:10.1017/s0041977x00017559. JSTOR3107388.