นวกิจบำรุง พ. (2019) “Highland Farmers in the Market Economy of Seeds and Field Corn Produces”, Journal of Social Sciences, Chiang Mai University. Chiangmai, Thailand, 25(1), pp. 55–79. available at: https://so04.tci-thaijo.org/index.php/jss/article/view/171537 (accessed: 1 October 2026).