Lestari Y, Siregar A. The Effectiveness of Information Services by Using the Drama Film "Cry Me A Sad River" to Minimize Bullying Behavior in Middle School Students. j. lesson learning stud. [Internet]. 26 Juni 2023 [dikutip 17 Juli 2024];6(2):176-82. Tersedia pada: https://ejournal.undiksha.ac.id/index.php/JLLS/article/view/63215