Nguyen, N. and Luu, N. 2018. The survey of phytoplankton density fluctuation in Dong Nai river (from Song Be river to An Hao wharf). VNUHCM Journal of Natural Sciences. 1, T5 (Nov. 2018), 41-49. DOI:https://doi.org/https://doi.org/10.32508/stdjns.v1iT5.534.