SUTARTIAH, F.; NUR AMALIA, A. Investment cost analysis and payback period of waste heat recovery system technology in a nickel pyrometallurgical smelter with 300,000 tons NPI/ year capacity: a case study of PT “X” in the IMIP Morowali industrial area. SAINTEKS : Jurnal Sain dan Teknik, [S. l.], v. 8, n. 02, p. 213–225, 2026. DOI: 10.37577/sainteks.v8i02.1133. Disponível em: https://ejournal.uicm.ac.id/index.php/sainteks/article/view/1133. Acesso em: 29 sep. 2026.