Adinugraha, Hendri. “Progressive Education in Indonesia: Insight from Soedjatmoko Thought”. Tarbawy : Jurnal Pendidikan Islam 7, no. 2 (October 26, 2020): 113-121. Accessed April 5, 2025. https://jurnal.lp2msasbabel.ac.id/index.php/tar/article/view/1410.