Safitri, Diah, and Sucihatiningsih Prajanti. “Aquaculture Production Optimization Model of Brebes Regency”. Efficient: Indonesian Journal of Development Economics 2, no. 3 (December 8, 2019): 512-523. Accessed May 4, 2024. https://journal.unnes.ac.id/sju/efficient/article/view/35904.