Ḥisābāt Suhayl wa-ḥisābāt al-durūr : ṣawt min al-māḍī al-aṣīl /

by Sayf, Ṣakhr ʻAbd Allāh, Sayf, Ṣakhr ʻAbd Allāh, Sayf, Ṣakhr ʻAbd Allāh, Sayf, Ṣakhr ʻAbd Allāh, Sayf, Ṣakhr ʻAbd Allāh
Published 2020

al-Taqwīm al-Hijrī bi-al-tawqītayn al-zawālī wa-al-ghurūbī /

by Sayf, Ṣakhr ʻAbd Allāh
Published 2003