Chittavaro, P. ., P. phothikhun, and S. Thongpan. “Socialist Philosophy Of Kaysonphomviharn During The Period 1975-1990”. Journal of Graduate MCU KhonKaen Campus, vol. 6, no. 4, Dec. 2019, pp. 904-19, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/240479.