Hieu, Nguyen, 		Lien, Bui, AND 		Vinh, Nguyen.
" Using Macro-invertebrates as Bio-indicator for Assessment Water Quality of Bodies in Ngoc Thanh Commune,  Phuc Yen District, Vinh Phuc Province" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 32 Number 1S (15 March 2016)