Bui, T., Hoang, K. and Hoang, H. 2015. The functional feeding groups’ structure of aquatic insects in upstreams of Da Nhim river, Lam Dong province. Science and Technology Development Journal. 18, 2 (Jun. 2015), 25-35. DOI:https://doi.org/https://doi.org/10.32508/stdj.v18i2.1138.