[1]
F. Sutartiah and A. Nur Amalia, “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, vol. 8, no. 02, pp. 213–225, Sep. 2026.