M. Adifullah, Dwi Iramadhani, Muhammad Naufal Akbar, Muhammad Athaya Rizqilla, Mumtazia Wildan Al Muttaqi, and Muhammad Zikri Marpaung, “VALIDITAS DAN RELIABILITAS SKALA BYSTANDER BULLYING SANTRI ”, JCN, vol. 3, no. 3, pp. 1–12, Sep. 2025.