Nurmala, I., Salim, L.A., Muthmainnah, M., Devi, Y.P., Harris, N., Wiseman, N. and Nadia, A. 2024. Students’ Perception of Their Self-Efficacy by Being a “Hey Peer Educator” in Drug Abuse Prevention. Jurnal Promkes: The Indonesian Journal of Health Promotion and Health Education. 12, 2 (Sep. 2024), 180–187. DOI:https://doi.org/10.20473/jpk.V12.I2.2024.180-187.