Hidayat, Muhammad, Hasrian Rudi Setiawan, Arwin Juli Rakhmadi, and Hariyadi Putraga. “Pemanfaatan Astrolabe Dalam Perhitungan Waktu Shalat Di SMA Sains & Tahfidz Al-Ammar Tanjung Morawa”. Jurnal SOLMA 10, no. 3 (December 31, 2021): 524–531. Accessed December 5, 2025. https://journal.uhamka.ac.id/index.php/solma/article/view/7339.