Zaenal Muttaqin, and Septi Gumiandari. “The Relationship Between Teenagers’ Cognitive Development and Bullying Behavior in Sindangjawa Middle School Students, Dukupuntang District”. al-Afkar, Journal For Islamic Studies 8, no. 1 (March 22, 2025): 1639–1653. Accessed April 1, 2025. https://al-afkar.com/index.php/Afkar_Journal/article/view/1325.