FREIRE, Adriano Higino; REIS, Ricardo Pereira; VEIGA, Ruben Delly; FONTES, Renato Elias. ECONOMIC EFFICIENCY OF COFFEE IN THE SOUTH OF MINAS GERAIS: ONE APPLICATION OF PRODUCTION FRONTIER. Coffee Science - ISSN 1984-3909, [S. l.], v. 6, n. 2, p. 172–183, 2011. Disponível em: https://coffeescience2.ufla.br/index.php/Coffeescience/article/view/310. Acesso em: 21 oct. 2026.