YADAV, B S; VIRK, A S; SAGAR, V. Role of different energy sources on in vitro nitrogen fixation from urea treatment of wheat straw. The Indian Journal of Animal Sciences, Delhi, India, v. 64, n. 12, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/31293. Acesso em: 24 oct. 2025.