Thi Hoang Yen, Tran, Tran Thanh Thai, Nguyen Van Tu, Ngo Xuan Quang, & Pham Thanh Luu. " Environmental Factors Influencing Chlorophyll-a Concentration in Tri An Reservoir, Vietnam." VNU Journal of Science: Earth and Environmental Sciences [Online], 37.2 (2021): n. pag. Web. 29 Apr. 2024