Bedini, Silvio A. (1963). ”The Scent of Time. A Study of the Use of Fire and Incense for Time Measurement in Oriental Countries”. Transactions of the American Philosophical Society (Philadelphia, Pennsylvania: American Philosophical Society) 53 (5): sid. 1–51. doi:10.2307/1005923.
Donald Routledge Hill (1991). ”Arabic Mechanical Engineering: Survey of the Historical Sources”. Arabic Sciences and Philosophy: A Historical Journal (Cambridge University Press) 1 (2): sid. 167–186 [174]. doi:10.1017/S0957423900001478.
Donald Routledge Hill (1991). ”Arabic Mechanical Engineering: Survey of the Historical Sources”. Arabic Sciences and Philosophy: A Historical Journal (Cambridge University Press) 1 (2): sid. 167–186 [180]. doi:10.1017/S0957423900001478.
Donald Routledge Hill (1991). ”Arabic Mechanical Engineering: Survey of the Historical sources”. Arabic Sciences and Philosophy: A Historical Journal (Cambridge University Press) 1 (2): sid. 167–186 [173]. doi:10.1017/S0957423900001478.
King, David A. (1983). ”The Astronomy of the Mamluks”. Isis 74 (4): sid. 531–555 [545–546]. doi:10.1086/353360.