1. Al-Kāshīs Iteration Method for the Determination of Sin 1°;Aaboe;Scripta Mathematica,1954
2. Muqarnas;Behrens-Abouseif;Encyclopaedia of Islam [II],1991
3. Berggren J. Lennart 1986 Episodes in the Mathematics of Medieval Islam
4. “Architecture in the treatise “Key of Arithmetic” by Ghiyāth al-Dīn al-KashiM”, (Russian);Bretanizkij;Iskusstwo Azerbaidjana,1956