Sinaga, Isaac Immanuel. “Al Jumu’ah and the Sabbath: A Comparative Study of the Day of Worship and the Day of Congregation”. Abstract Proceedings International Scholars Conference 6, no. 1 (October 29, 2018): 175. Accessed April 25, 2024. https://jurnal.unai.edu/index.php/isc/article/view/1142.