Mai, Dang, Nguyen Van Vuong, & Nguyen Trong Ngu.
" Distribution of Arsenic, Copper, Lead, Zinc elements in water and soils of sulfur deposits in the North West of Hanoi." <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], 25.2 (2009): n. pag. Web. 25 Nov. 2024