Trend study on COVID-19 pandemic lockdown impact on rivers in Selangor, Malaysia. IEM Journal, [S. l.], v. 83, n. 1, 2023. DOI: 10.54552/v83i1.137. Disponível em: https://iemjournal.com.my/index.php/iem/article/view/137. Acesso em: 1 apr. 2026.