Prinsip dan teori teori hukum Islam: usul al fiqh - Muhammad Hashim Kamali (Pustaka Pelajar, 1996)
IR,C.1-6/oen, c.7/ir,c.8/oen, c.9,ws.c.10/ast c.11/ast c.12/tr,c.13-33/ws.c.34