Anh, Nguyen, Vu Thanh, Bui Thuy, Nguyen Hue, and Tran Nhue. 2016. “MASS BALANCE AND ENERGY ANALYSIS OF A WASTEWATER SLUDGE ANAEROBIC DIGESTION SYSTEM FOR ENERGY RECOVERY”. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE 10 (5), 122-26. https://stce.huce.edu.vn/index.php/en/article/view/304.