Kitab al-Risāla – Treatise on the Foundations of Islamic Jurisprudence (Imam Shafie) – Part 1
Kitab al-Risāla – Treatise on the Foundations of Islamic Jurisprudence (Imam Shafie) – Part 2
Kitab al-Muhallā bi’l Athār – The Adorned Treatise (Ibn Hazm)
al-Muwāfaqāt fī Uṣūl al-Sharī’a – The Reconciliation of the Fundamentals of Islamic Law (Shaatibi)