Bich Ngoc, N. T., Thuy, N. B., Mai Huong, N. T., An, V. D., Thuy, D. T., Cuong, H. T., & Phuong Quynh, L. T. (2014). Preliminary monitoring results of total coliforms and fecal coliform in the Red river system, in the section from Yen Bai to Hanoi. Academia Journal of Biology, 36(2), 240–246. https://doi.org/10.15625/0866-7160/v36n2.5122