Full reference OpenMind biblio ref
Ahmedov, A.A. 1991. “Traktaty Al-Khorezmi Ob Opredelenii Azimutov I Vremeni (Treatises Of Al-Ḫwārizmī On The Definition Of Azimuth And Time)”. In Materialy Po Istorii I Po Istorii Nauki I Kul'tury Narodov Sredney Azii, 155-200. Tashkent.
{ A.A. Ahmedov, 1991 #10310 }