(Khamchaiyaphum), P. P. S. . “The Ethical Value of the Morals in the Words of Marriage in Chaiyaphum Province”. Journal of Graduate MCU KhonKaen Campus, vol. 6, no. 3, Sept. 2019, pp. 95-107, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/215656.