Makhsyari Zaharayu Harahap 2023. Improving The Performance Skills of Class XI Students at SMAS Tasik Raja Labuhan Batu Selatan in Matricks by Using Model Problem Based Learning. Journal of General Education Science. 1, 3 (May 2023), 212–219. DOI:https://doi.org/10.62966/joges.v1i3.569.