Safruddin, Safruddin, et al. “Skipjack Tuna Fishing Ground Based on Oceanography Satellite Image Data in Fisheries Management Area (FMA) 713”. Torani Journal of Fisheries and Marine Science, vol. 3, no. 2, Sept. 2020, pp. 51-60, doi:10.35911/torani.v3i2.11368.