Luneto, Riska. “Government Intervention and the Improvement of Competitiveness of the National Coffee Industry: The Case of Indonesian Gayo Coffee”. JISPO Jurnal Ilmu Sosial dan Ilmu Politik 12, no. 1 (July 16, 2022): 63–80. Accessed December 17, 2025. http://103.55.33.27/index.php/jispo/article/view/14638.