Boonsaen, P., Soe, N.W., Maitreejet, W., Majarune, S., Reungprim, T. and Sawanon, S. 2017. Effects of protein levels and energy sources in total mixed ration on feedlot performance and carcass quality of Kamphaeng Saen steers. Agriculture and Natural Resources. 51, 1 (Feb. 2017), 57–61.