Lumbanraja PL, Lumbanraja PC. Analysis of the Effect of Palm Oil Productivity on Indonesian Palm Oil (CPO) Supply Chain Management 2015-2021 Through Government Policy as a Mediation Variable. Indonesian J. Agric. Res [Internet]. 2024Dec.12 [cited 2025Aug.19];7(3):203-15. Available from: https://talenta.usu.ac.id/InJAR/article/view/15851