RICHARD C. S, W.; CHUN FOONG, C.; HONG WEE, W. Distribution of Heavy Metals Found in Three Major Rivers of North-Eastern Pulau Langkawi. Malaysian Journal of Science, [S. l.], v. 24, p. 9–14, 2005. Disponível em: https://ejournal.um.edu.my/index.php/MJS/article/view/8813. Acesso em: 12 may. 2024.