MALAYSIAN WATER UTILITIES PERFORMANCE WITH THE PRESENCE OF UNDESIRABLE OUTPUT: A DIRECTIONAL DISTANCE FUNCTION APPROACH. Jurnal Teknologi (Sciences & Engineering), [S. l.], v. 78, n. 4-3, 2016. DOI: 10.11113/jt.v78.8232. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/8232.. Acesso em: 19 dec. 2024.