XIONGTOUA, Tongvang, Thongphanh CHANTHAVONE, Youtthasack KINGSADA, Vanhxay THAMMAVONG, and Sithat SOULISACK. 2020. “Evaluation of Economic Values of the 1st Plain of Jars Tourist Attraction in Xiengkhouang Province”. Souphanouvong University Journal Multidisciplinary Research and Development 6 (2):137-48. http://www.su-journal.com/index.php/su/article/view/274.