Suerphang, C., Intawicha, P. , Sorachakura, C., Saengwong, S. and Dongpaleethun, C. 2021. Effects of Concentrate Feed Supplementation on the Reproductive Systems, Progesterone and Estradiol Levels in the White Lamphun Cows. Health Science, Science and Technology Reviews. 14, 3 (Dec. 2021), 74–82.