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), pp. 180–187. doi: 10.20473/jpk.V12.I2.2024.180-187.