Paosiri, A., พันธไชย ผ. ., and จันทวารีย์ ผ. . “: The Effectiveness of the Performance of the Royal Funeral Service of Roiet Province Culture Office”. RATANABUTH JOURNAL, vol. 4, no. 2, Aug. 2022, pp. 15-29, https://so07.tci-thaijo.org/index.php/rtnb/article/view/1686.