Mahaprom , L., & Wayoopagtr, C. (2021). Marketing Potential Development Guideline for Beef Cattle Raising Group among Farmers and Community Enterprise in Nam Som District, Udon Thani Province. Journal of Modern Learning Development, 7(2), 135–150. retrieved from https://so06.tci-thaijo.org/index.php/jomld/article/view/252082