Fachreza Via Cahya, and Sri Mardiana. “PENGARUH KOMPOSISI PENJUALAN EKSPOR, COST OF GOODS SOLD RATIO DAN TOTAL ASSET TURNOVER TERHADAP RETURN ON ASSET PADA PT BUKIT ASAM TBK PERIODE 2015-2024”. ECOTECHNOPRENEUR : Journal Economics, Technology And Entrepreneur, vol. 4, no. 04, Dec. 2025, pp. 365-80, doi:10.62668/ecotechnopreneur.v4i04.2032.