Mannaga, Idham. “KINERJA KEUANGAN PADA PT. SERMANI STEEL MAKASSAR BERDASARKAN RETURN ON INVESTMENT DAN TOTAL ASSET TURNOVER”. AkMen JURNAL ILMIAH 9, no. 1 (March 31, 2012). Accessed August 2, 2025. https://e-jurnal.nobel.ac.id/index.php/akmen/article/view/425.