Raf' al-ishkal'an ba'd al-masa'il al-muta'alliqah bi-ru'yat al-hilal - al-Qanubi, Sa'id ibn Mabruk; Muscat. Ministry of Endowments and Religious Affairs ([Muscat] : Saltanat'Uman, Wizarat al-Awqaf wa-al-Shu'un al-Diniyah, 2010)
Keywords: Islamic calendar; New moon; Islamic chronology