RAJNI AND P K SRAW. Identification of Constraints in Herbicide Application Technology of Punjab Farmers. Indian Journal of Extension Education, India, v. 53, n. 2, p. 101–104, 2017. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/143952. Acesso em: 3 nov. 2025.