Kartini, E., Wandra, T., Hutajulu, J., Nababan, D., & Tarigan, F. L. (2025). The Effect of Posyandu Basic Skills Training on Knowledge: A Quasi-Experimental Study on Health Workers at the Medan City Health Office in 2024. Journal of Pharmaceutical and Sciences, 8(4), 2879–2890. https://doi.org/10.36490/journal-jps.com.v8i4.1201