Rizvi, Sajjad. 2014. “Epistles of the Brethren of Purity. On the Natural Sciences: An Arabic Critical Edition and English Translation of EPISTLES 15-21 By Carmela Baffioni, Ed. And Trans. (Oxford: Oxford University Press in Association With the Institute of Ismaili Studies, 2013. 969 pages.)”. American Journal of Islam and Society 31 (2). USA:125-28. https://doi.org/10.35632/ajis.v31i2.1046.