HANDRIYONO, R. E.; SHITA DEWI, A. W.; SHITA DEWI, A. W. STUDI KANDUNGAN ASAM PADA AIR HUJAN DI KAWASAN SURABAYA TIMUR. ENVIROSAN : Jurnal Teknik Lingkungan, [S. l.], v. 1, n. 2, p. 52–55, 2018. DOI: 10.31848/ejtl.v1i2.144. Disponível em: https://e-journal.ukri.ac.id/index.php/envirosan/article/view/144. Acesso em: 24 may. 2026.