Wu, Xiaoyun, Youfei Zheng, Kesi Lin, and Mao Bing. “Technology for Small Sewage Treatment: The Chinese Perspective: A Review”. Asian Journal of Chemistry 26, no. 22 (November 6, 2014): 7485–7490. Accessed July 5, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_24_2.