Rajab, Hadarah. “School Of The Elderly As A Convenience For Effective Humanization: A Social Criticism of the Universality of Bangka Belitung Society”. Jurnal Sustainable 4, no. 2 (December 31, 2021): 132-143. Accessed April 25, 2025. http://lp2msasbabel.ac.id/jurnal/index.php/sus/article/view/2191.