Ibn Ibrahim, Muhammad al-Ijtihad wa al-'urf / Muhammad ibn Ibrahim - al-Qahirah : Dar al-Salam, 2009 - 301 p. ; 24 cm. ISBN: 9789773426866 RM79.00 9773426866 Subjects--Topical Terms: Ijtihad (Islamic law)Customary law (Islamic law)