Siregar, Mustamar Iqbal. “REEVALUASI KRITERIA PERHITUNGAN AWAL WAKTU SALAT DI INDONESIA”. At-Tafkir 10, no. 1 (October 12, 2017): 38-63. Accessed April 21, 2026. https://dev-journal.iainlangsa.ac.id/index.php/at/article/view/231.