A modern guide to astronomical calculation of Islamic calendar times & Qibla - Ilyas, Muhammad (Kuala Lumpur Berita Publishing SDN. BHD., 1984)
Keywords: Calendar, Islamic-Table -- Astronomical coordinate system -- Natural time reckoning -- Sidereal time -- Spherical triangles -- Orbital motions -- Position determination -- Lunar calendar -- Technical details -- Radiation detector -- Islam -- IIMC