S. Hanafi, Kiky Rifky, Nurhidayat Muhammad Said, and Suf Kasman. “The Nahdlatul Ulama Preaching Movement in Overcoming Apostasy in Gorontalo Province”. Jurnal Mercusuar 2, no. 3 (December 31, 2021). Accessed April 18, 2025. https://journal.uin-alauddin.ac.id/index.php/mercusuar/article/view/31078.