Penentuan Kualitas Air Minum Isi Ulang Terhadap Kandungan Total Kromium, Nitrat, Nitrit, Total Zat Padat Terlarut, Suhu, dan pH. Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam, [S. l.], v. 15, n. 2, p. 112–117, 2018. DOI: 10.31851/sainmatika.v15i2.2284. Disponível em: https://jurnal.univpgri-palembang.ac.id/index.php/sainmatika/article/view/2284. Acesso em: 21 jun. 2026.