STUDY AND ANALYSIS OF POLLUTION IN KHAN RIVER. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 8, p. 30–34, 2018. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/5188. Acesso em: 29 jul. 2025.