Sari, Wulan Indah, and Puji Muniarty. “The Effect of Gross Profit Margin (GPM) on Profit Growth at the Indonesian Employee Cooperative (KPRI) Torch of Teachers Bima ”. Ilomata International Journal of Management 2, no. 2 (April 29, 2021): 101-105. Accessed December 4, 2024. https://ilomata.org/index.php/ijjm/article/view/226.