Talakua E, Angela Ruban, Janer Sangaji. Maximum Profit Optimization of The Walang Marthafons Smoked Fish Business in Poka Village, Ambon. Grouper [Internet]. 2026 Apr. 16 [cited 2026 Apr. 21];17(1):30-9. Available from: https://grouper.unisla.ac.id/index.php/grouper/article/view/378