Gurning, Dedy, Hamonangan Siallagan, and Amlys Silalahi. “Return On Assets Of Plantation Companies Listed On The Indonesian Stock Exchange”. Jurnal Ekonomi 13, no. 04 (December 11, 2024): 995–1003. Accessed September 13, 2026. https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/5478.