Suthiphasilp, Paphakorn. “CHANGES OF SOIL PROPERTIES AFTER THE USE OF WEED CONTROL BIO-EXTRACTS”. Life Sciences and Environment Journal 21, no. 2 (September 14, 2020): 420–428. Accessed May 19, 2024. https://ph01.tci-thaijo.org/index.php/psru/article/view/240511.