2018. Kajian Produktivitas Perikanan Tuna Cakalang Tongkol yang Tertangkap dengan Kapal Pukat Cincin (purse seine) 20 – 30 GT di Pelabuhan Perikanan Samudera Bitung (Productivity of Tuna, Skipjack, Tuna Frigate Catched by Purse Seiner 20 - 30 GT Landed in Bitung Oceanic Fishing Port). Journal of Capture Fisheries Science and Technology. 3, 1 (Aug. 2018). DOI:https://doi.org/10.35800/jitpt.3.1.2018.18909.