http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Syarah Al Waraqat fi ushul al-Fiqh : Memahami Kaidah Asasi Hukum Islam
Imam Haramain al - Juwaini; Imam Jalaluddin al - Mahalli