LEO, Muarif; HERMAN, Herman. Analisis Return of Asset (ROA) dan Return of Equity (ROE) pada Perusahaan Transportasi PT. Blue Bird. Jurnal Ekonomi dan Bisnis, [S. l.], v. 1, n. 1, p. 19–23, 2022. DOI: 10.57151/jeko.v1i1.8. Disponível em: https://ejournal.poltekbaubau.ac.id/index.php/jeko/article/view/8. Acesso em: 18 jan. 2026.