Thi Hoang Nga Vo และ Thi Dung Le. (2016) Researching the existence of a number of harmful microorganisms in biological padding for raising pigs used in livestock of Vietnam. <i>KKU Engineering Journal</i>, <i>43</i>(S2), 231-235.Thi Hoang Nga Vo และ Thi Dung Le. "Researching the existence of a number of harmful microorganisms in biological padding for raising pigs used in livestock of Vietnam". KKU Engineering Journal 43 (2016):231-235.Thi Hoang Nga Vo และ Thi Dung Le. Researching the existence of a number of harmful microorganisms in biological padding for raising pigs used in livestock of Vietnam. Faculty of Engineering, Khon Kaen University:ม.ป.ท. 2016.