Purnanto, Nurulistyawan Tri, Yuwanti Yuwanti, and Yusriani Saleh Baso. 2024. “The Effect of Health Education on Children’s Level of Knowledge about Bullying in MTs NU Manbaul Qur’an ”. Menara Journal of Health Science 3 (2):346-52. https://jurnal.iakmikudus.org/article/view/203.