Khai, N., 		Tuan, P., 		Vinh, N., & 		Oborn, I.
(2008).
 Effects of using wastewater as nutrient sources on soil chemical properties in peri-urban agricultural systems.
<em>VNU Journal Of Science: Earth And Environmental Sciences, 24</em>(2).
Retrieved from <a href="https://js.vnu.edu.vn/EES/article/view/2212" target="_new">https://js.vnu.edu.vn/EES/article/view/2212</a>