JAYA, Danang; WIDAYATI, Tunjung Wahyu; MUSTIKA, Refina Yuni; SUWARDI, Halim Nur Aziz. Enhancing coal tailing quality by Flotation Method using Biosurfactant from Lerak (Sapindusrarak De Candole). Eksergi, [S. l.], v. 17, n. 1, p. 20–27, 2020. DOI: 10.31315/e.v17i1.3298. Disponível em: https://jurnal.upnyk.ac.id/index.php/eksergi/article/view/3298. Acesso em: 19 jul. 2025.