Amin, Muhammad Faishol. “The Method of Determining Lunar Month of Four Madhhab”. Hayula: Indonesian Journal of Multidisciplinary Islamic Studies 2, no. 1 (January 31, 2018): 17-32. Accessed April 29, 2024. https://journal.unj.ac.id/unj/index.php/hayula/article/view/5056.