. Muhammad Al-Jamal, “Mausu’atu al-Iqtishad al-Islamy”, Dar al-Kitab al-Mashry, tahun 1980, hal. 147.
.Ar-Razy, Abu Bakar Ahmad bin Ali, “Al-Jashash Fi Ahkamil Qur’an”, juz. 3, hal. 165.
. Hamzah Al-Jumai’I ad-Damuhy, “Awamilul Intaj Fil-Iqtishad al-Islamy”, Dar Thib’ah Wan-Nasyr al-Islamiyah, hal. 210.
.Mushtafa Mahmud, “Al-Marksiyah Fil Islam”, ibid. hal. 75.
. Muhammad Syaibani, “Al-Iktisab Fir Rizqi al-Mustathab”, Maktabah Nasyru Saqafah Islamiyah, Kairo, tahun 1357 H/1938 M, cet. I, hal. 14.
.Muhammad Syaibani, “Al-Iktisab Fir-Rizqi al-Mustathab”, ibid. hal. 35.
.Nikmat Abdul Lathif Masyhur, “Az-Zakah; Al-Asar al-Inmaiy wat Tauzi’I”, ibid. hal. 141.
.Rafiq Yunus Al-Masry, “Ushulul Iqtishad al-Islamy”, ibid. hal. 89.
.Imam Ibnu Taimiyah, “As-Siyasah as-Syar’iyah”, ibid. hal. 26.
.Abu Yusuf, “Al-Khorroj”, ibid. hal. 93dan setelahnya.
.Syauqi Ahmad Dunya, “Al-Islam wa at-Tanmiyah al-Iqtishadiyah”, ibid. hal. 28.
