Weena Nilawonk. (2020) Influence of organic fertilizers and bio-extracts on the change of some soil properties and vegetable yields. <i>Khon Kaen Agriculture Journal</i>, <i>48</i>(3), 639-650.Weena Nilawonk. "Influence of organic fertilizers and bio-extracts on the change of some soil properties and vegetable yields". Khon Kaen Agriculture Journal 48 (2020):639-650.Weena Nilawonk. Influence of organic fertilizers and bio-extracts on the change of some soil properties and vegetable yields. Faculty of Agriculture:ม.ป.ท. 2020.