J.P. LAKHERA AND N K PANJABI. Constraints of Fertilizer Use. Indian Journal of Extension Education, India, v. 27, n. 3-4, p. 114–115, 1991. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/160580. Acesso em: 24 oct. 2025.