Ruangchoengchum, P., and S. Uriyapongson. “Transportation cost reduction for the native beef trade using the network analysis technique in Sisaket Province”. Kasetsart Journal of Social Sciences, vol. 42, no. 1, Feb. 2021, pp. 9–14, https://so04.tci-thaijo.org/index.php/kjss/article/view/249424.