Sommanasak, W., Chirinung, P., Sirisunhirun, S. and Pintobtang, P. (2024) “A Development Model for the Descendants, Young-Smart Farmers According to the King’s Philosophy in the Upper Northern Region”, Journal of Humanities and Social Sciences, Rajapruk University, 8(3), pp. 357–371. available at: https://so03.tci-thaijo.org/index.php/rpu/article/view/265324 (accessed: 12 September 2026).