Sriboonyong, P., S. Attamangkune, S. Rattanatubtimtong, and Y. Ruangpanit. “The Study of Physical, Chemical Properties, and Apparent Metabolizable Energy of Glycerol in Broiler”. Journal of Mahanakorn Veterinary Medicine, vol. 14, no. 2, Dec. 2019, pp. 81-91, https://li01.tci-thaijo.org/index.php/jmvm/article/view/198758.