Tonghan, P., L. Rungrot, J. Phanmoo, O. Pibool, and soathongtong ื. “Politics in the Literature of Khun Chang Khun Phaen”. Journal of MCU Phetchaburi Review, vol. 9, no. 2, Aug. 2026, pp. 329-46, https://so03.tci-thaijo.org/index.php/JPR/article/view/301214.