Rohmana, Devis Yulia, Kartini Estelina, and Iskandar Iskandar. 2020. “The Bullying Phenomenon and Handling Efforts in Reducing Cases of Bullying: A Systematic Review”. Jurnal Ners 15 (1Sp):557-62. https://doi.org/10.20473/jn.v15i1Sp.20479.