Johan Firdaus, Hasan Basri. Dampak Bullying terhadap Prestasi Belajar Siswa Kelas IX SMP Muhammadiyah 1 Gresik : The Impact of Bullying on the Learning Achievement of Class IX Students at SMP Muhammadiyah 1 Gresik. iqra [Internet]. 2025Jan.23 [cited 2025Mar.10];20(1):72-5. Available from: https://jurnal.unismuhpalu.ac.id/index.php/IQRA/article/view/6935