Awāʾil aš-šuhūr al-ʿArabīya hal yaǧūzu šarʿan iṯbātuhā bi-'l-ḥisāb al-falakī? : baḥṯ ǧadīd ʿilmī ḥurr - Šākir, Aḥmad Muḥammad 1892-1958 (Maktabat Ibn-Taimīya, 1986)