หิรัญบูรณะ กวินวัฒน์. 2020. “The Trace of Hinduism and Buddhism in Si Sa Ket Province, Before 23 Buddhist Centuries”. Journal of Humanities and Social Sciences, Rajapruk University 5 (3):1-13. https://so03.tci-thaijo.org/index.php/rpu/article/view/237750.