CHANTHAKHOUN, V., S. MANYSOAT, X. BRIATIA, and V. BANDAVONG. “Study on Food Safety by Detection of Contamination in Food of the Market at LuangPrabang”. Souphanouvong University Journal Multidisciplinary Research and Development, vol. 3, no. 1, June 2017, pp. 144-55, http://www.su-journal.com/index.php/su/article/view/675.