VONGMANICHANH, N., T. CHANTHAVONE, S. OUTHACHACK, and S. THIPDACHANH. “The Impact of Business Innovation Affecting the Peformance of Business Service Secter in Luang Prabang”. Souphanouvong University Journal Multidisciplinary Research and Development, vol. 6, no. 3, Dec. 2020, pp. 1353-62, http://www.su-journal.com/index.php/su/article/view/286.