Kartini E, Wandra T, Hutajulu J, Nababan D, Tarigan FL. The Effect of Posyandu Basic Skills Training on Knowledge: A Quasi-Experimental Study on Health Workers at the Medan City Health Office in 2024. JPS [Internet]. 2025 Dec. 9 [cited 2026 Jan. 26];8(4):2879-90. Available from: https://journal-jps.com/new/index.php/jps/article/view/1201