SAHAY, Ratna; SINGH, A K; SINGH, Archana; MAURYA, R C; TEWARI, D K; SINGH, Sunil. Impact of Soil Health Card in Unnao District of Uttar Pradesh. Indian Journal of Extension Education, India, v. 55, n. 3, p. 101–103, 2020. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/108288. Acesso em: 23 oct. 2025.