A. SURYANARAYANA MURTHY. Effectiveness of A.E.Os and V.L. Ws in Increasing Agricultural Productionin Andhra Pradesh. Indian Journal of Extension Education, India, v. 1, n. 3, p. 209–214, 1965. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/159622. Acesso em: 21 oct. 2025.