“Value Added and Profitability Analysis of Innovative Seaweed Buoy Production in North Kalimantan”. Jurnal Manajemen Bisnis 13, no. 1 (March 31, 2026): 730–739. Accessed April 3, 2026. http://jurnal.fe.umi.ac.id/index.php/JMB/article/view/1488.