Nguyen, Thi Huynh Nhu, and Nuntavun Riddech. 2016. “Effects of Rhizobacteria on Seed Germination of Water Spinach (Ipomoea Aquatica)”. Asia-Pacific Journal of Science and Technology 21 (2):280-90. https://doi.org/10.14456/kkurj.2016.53.