Ahmad, Muchtar. “PENGEMBANGAN ‘MARINE BUSINESS’ DI WILAYAH PESISIR TIMUR SUMATERA UTARA”. DINAMIKA PERTANIAN 32, no. 2 (August 1, 2016): 125–134. Accessed May 4, 2024. https://journal.uir.ac.id/index.php/dinamikapertanian/article/view/577.