Kaewtapee, C., C. Khetchaturat, R. Nukreaw, N. Krutthai, and Chaiyapoom Bunchasak. “Artificial neural networks approach for predicting methionine requirement in broiler chickens”. The Thai Journal of Veterinary Medicine, vol. 51, no. 1, Jan. 2021, pp. 161-8, https://he01.tci-thaijo.org/index.php/tjvm/article/view/247456.