TAUFIK; PUTRI, N. T.; KEVIN, M. Technical Evaluation and Financial Analysis of a Retrofitting Investment Project for Production Machinery in a Cement Plant. Jurnal Optimasi Sistem Industri, Padang, ID, v. 22, n. 2, p. 215–229, 2023. DOI: 10.25077/josi.v22.n2.p215-229.2023. Disponível em: https://josi.ft.unand.ac.id/index.php/josi/article/view/613. Acesso em: 16 may. 2024.