Sa’adah, Wachidatus. “ANALISA USAHA PENGOLAHAN BAKSO IKAN TUNA DI PT. PRIEMA RASA MANDIRI GRESIK”. Grouper 3, no. 1 (September 1, 2011): 7 Halaman. Accessed November 24, 2024. https://grouper.unisla.ac.id/index.php/grouper/article/view/17.