Von Grunebaum, G.E. (Gustave Edmund), 1909-1972
Islam essays in the nature and growth of a cultural tradition / G.E. von Grunebaum
Routledge & Kegan Paul, 1955
 Buku Teks SO
Schacht, Joseph
Introduction to Islamic law
Clarendon Press, 1964
 Buku Teks SO
Abdurrahman Raden Aji Haqqi
The philosophy of Islamic law of transactions
CERT Publications Sdn. Bhd, 2009
 Buku Teks SO
Mallat, Chibli
The Renewal of islamic law / Chibli Mallat
Cambridge Universuty Press, 1995
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Rohe, Mathias
Islamic law in past and present
Brill, 2015
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