Tuammilat fi ba'd al-awamir wa al-nawahi fi al-Quran wa al-Sunnah = Contemplation in some commands and forbiddances in qur'an and Sonnah
Dialog lintas mazhab : fiqh ibadah dan muamalah
Fatwa-fatwa Imam Asy-syafi'i : masalah ibadah
Al-Umm
Ilmu ushul fiqh
Al-`Uddah fī uṣūl al-fiqh
Panduan fiqih ibadah bergambar : pembahasan lengkap seputar thaharah, shalat, puasa, zakat dan haji
Ushul al-fiqh
Kaidah-kaidah hukum islam
Horizon ushul fikih islam