Billah, Mohd. Ma`sum
Applied Islamic law of trade and finance : a selection of contemporary issues
Sweet & Maxwell, 2007
 Buku Teks SO
Billah, Mohd. Ma`sum
Applied Islamic law of trade and finance : a selection of contemporary issues
Sweet & Maxwell, 2007
 Buku Teks SO
Contemporary issues in the Islamic world: the Indonesian perspectives
edited by Cheyne Scott, Irfan Abubakar
The Center for the Study of Religion and Culture (CSRC), 2008
 Buku Teks SO
Essential readings in contemporary waqf issues
edited by Monzer Kahf, Siti Mashitoh Mahamood
CERT Publications Sdn. Bhd, 2011
 Buku Teks SO
Aljamiah:jurnal of islamic studies
Yogyakarta, state islamic university(un) sunan kalijaga,
 Majalah, Jurnal, Buletin