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Kumara, B.P. and Dina Arini Adipathy 2026. Sustainability Of Fishery Ecosystems On Sumatra Island : The Role Of Poverty, Fishing Activities, And Population Pressure. International Journal of Economics, Business and Innovation Research. 5, 06 (Oct. 2026), 1412-1422. DOI:https://doi.org/10.63922/ijebir.v5i06.6880.