Wahyuniar L, Iman Pustakasari EN. Experience of Bullying Behavior in Students as Witnesses (Bystander/Upstander) Students in South Jakarta City. Edusci [Internet]. 2025 Jul. 22 [cited 2026 May 23];2(6):460-75. Available from: https://annpublisher.org/ojs/index.php/edusci/article/view/848