ISMI Islamic Scientific Manuscripts Initiative

Full reference OpenMind biblio ref
Kennedy, Edward, and Yusuf ʿId. 1974. “A Letter of Al-Bīrūni: Ḥabash Al-Ḥāsib`s Analema for the Qibla”. Historia Mathematica 1: 3-11.
 { Edward Kennedy, Yusuf ʿId, 1974 #10973 }