G., Sivanarayana; A, Lalitha. Farmers’ Perception and Adoption of Soil Health Cards in Guntur District. Journal of Agricultural Extension Management, India, v. 20, n. 2, p. 75, 2020. Disponível em: https://epubs.icar.org.in/index.php/JAEM/article/view/105105. Acesso em: 28 oct. 2025.