Saputra, P.O., Nurdiawansyah, N. and Aminah, A. 2024. Determinants of Net Profit Margin in Plastic and Packaging Sub-Sector Companies Listed on the Indonesia Stock Exchange for the 2020-2022 Period. International Journal Of Education, Social Studies, And Management (IJESSM). 4, 1 (Mar. 2024), 119–130. DOI:https://doi.org/10.52121/ijessm.v4i1.217.