Sitanggang AAP, Siregar AEP, Siagian N, Sinaga K. The Effect of Product Quality and Modern Packaging Training on the Competitiveness of Salted Fish Products in the Belawan Coastal Area. al. kharaj. j. islam. econ. bus. [Internet]. 2026 Mar. 25 [cited 2026 Mar. 29];8(1). Available from: https://ejournal.iainpalopo.ac.id/index.php/alkharaj/article/view/9826