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Maulana Hadi S, Nawarisa Tarigan T, Br Siregar RM, Purba LL, Prayogi O. EFFECT OF OPERATING COSTS AND REVENUES ON FINANCIAL PERFORMANCE BASED ON RETURN ON ASSETS RATIO (ROA) IN PLASTICS AND PACKAGING SUB-SECTOR INDUSTRIAL COMPANIES LISTED ON THE INDONESIA STOCK EXCHANGE. Jurnal Ekonomi [Internet]. 2023 Jul. 10 [cited 2024 Dec. 5];12(3):740-7. Available from: https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/2039