Pasaribu, T. T. R. (2026) “The Effect of Operational Fishing Cost Management on Fishermen’s Income in Pantai Labu and Percut Sei Tuan Districts”, Jurnal Penelitian Samudra, 4(02). Available at: https://www.samudrajurnal.id/index.php/samudra/article/view/130 (Accessed: 16July2026).