BIBLIOGRAPHY CONTRIBUTOR Yusuf ʿId First name Yusuf Last name ʿId Bibliography entries by this contributor Kennedy, Edward, and Yusuf ʿId. 1974. “A Letter of Al-Bīrūni: Ḥabash Al-Ḥāsib`s Analema for the Qibla”. Historia Mathematica 1: 3-11.
