Zulkifli
Sufism in Java : the role of pesantren in the maintenance of sufism in Java
INIS, 2002
 Buku Teks SO
Urban sufism
editors, Martin van Bruinessen, Julia Day Howell
Rajawali, 2008
 Buku Teks SO
The history of Jama'ah tabligh in southeast asia : The role of Islamic sufism in Islamic revival
 Artikel Jurnal
Baldick, Julian
Mystical Islam: an introduction to sufism
I.B. Tauris, 1989
 Buku Teks SO
Lings, Martin (Abu Bakr Siraj al-Din)
What is sufism? / Martin Lings
George Allen and Unwin, 1975
 Buku Teks SO