صخري أوسامة ثابت. Juridical Choices of Al-Hafiz Ibn Hajar Al-Asqalani in His Book "Fath Al-Bari" Through the Chapter of Fasting: "Issues Related to the Start of Ramadan As an Example": Proving the Sighting of the Ramadan Crescent through Astronomical Calculation. IJHSS 2024, 2 (spc.). https://doi.org/10.61856/ijhss.v2ispc..168.