Hinsa, Davy Parsaoran, Oskar Ezra, and Ratlan Pardede. “Circular Economy in Indonesia: A Comparative Study of EU Countries and Finland”. Journal Research of Social Science, Economics, and Management 4, no. 10 (June 4, 2025): 1483–1500. Accessed December 13, 2025. https://jrssem.publikasiindonesia.id/index.php/jrssem/article/view/853.