HIFNI, Syaiful. ANALISIS PERSEDIAAN KAPORIT UNIT IPA CENDANA PADA PDAM TIRTA KENCANA SAMARINDA. OBOR: Oikonomia Borneo, [S. l.], v. 1, n. 1, 2019. DOI: 10.24903/obor.v1i1.1821. Disponível em: https://journal.uwgm.ac.id/oikonomia/article/view/1821. Acesso em: 3 jul. 2024.