NAOYENG , K., and V. LORBLIAYAO. “Study on Feeding Supplements for Cattle Fattening on Smallhoder Fammers in Paek District Xiengkhouang Province”. Souphanouvong University Journal Multidisciplinary Research and Development, vol. 5, no. 1, July 2019, pp. 61-69, http://www.su-journal.com/index.php/su/article/view/60.