Sudarmaji, Eka, Muhammad Rubiul Yatim, and Herlan Masrio. “Exploring the Use of Soft Systems Methodology and Business Model Canvas in Energy Service Companies”. European Journal of Applied Sciences 11, no. 4 (September 2, 2023): 276–295. Accessed May 30, 2026. https://scholarpublishing.org/journals/index.php/EJAS/article/view/8511.