Alfonso-Goldfarb, Ana M., and Safa A.A.C. Jubran. “The Material Principles or Bases in Early Arabic Hermeticism: A Case-Study from the Book of the Treasure of Alexander”. Circumscribere International Journal for the History of Science, vol. 1, no. 1, Mar. 2008, pp. 1-10, https://revistas.pucsp.br/index.php/circumhc/article/view/556.