MALIK, R S; YADAV, H K; NARENDER, NARENDER; RAJPAUL, RAJPAUL; SANGWAN, P S. Background levels of zinc, iron, manganese and copper in soil series of Haryana and their relationship with soil properties. The Indian Journal of Agricultural Sciences, Delhi, India, v. 87, n. 8, p. 1094–1098, 2017. DOI: 10.56093/ijas.v87i8.73279. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/73279. Acesso em: 25 oct. 2025.