Hue, Nguyen, Ngoc, Pham, Hanh, Tran, Tien, Ngo, AND Ha, Bui. " Effects of Environmental Parameters on Hydrogen Production of Strain Clostridium beijerinckii CB3 Isolated in North of Vietnam under Anaerobic Condition" VNU Journal of Science: Natural Sciences and Technology [Online], Volume 32 Number 1S (15 March 2016)