Fadhahilal A’mal. “Study of Islamic Astronomics: Methods and Criteria of Rukyat Hisab Determining the Beginning of the Month in Libya”. Proceeding of International Conference on Sharia and Law, Vol. 1, no. 1, Sept. 2022, pp. 60-64, https://proceedings.uinsa.ac.id/index.php/ICOSLAW/article/view/966.