SAYPASERTH, P., and N. VANG. “Study on Total Loss in Distribution Transformer of Junction at Khouathi 1 And Sansouk Substation”. Souphanouvong University Journal Multidisciplinary Research and Development, vol. 3, no. 1, July 2017, pp. 156-72, http://www.su-journal.com/index.php/su/article/view/32.