GUNAWAN, R., Siregar, D. M. S., Fitriani, A. D. and Pratama, M. Y. (2022) “Analysis of the Use of WhatsApp in Food Processing Behavior Changes in Entrepreneurs”, Jurnal Promkes: The Indonesian Journal of Health Promotion and Health Education, 10(1), pp. 65–72. doi: 10.20473/jpk.V10.I1.2022.65-72.