PENDAPATAN DAN EFISIENSI TEKNIS USAHATANI UBI JALAR DI JAWA BARAT : PENDEKATAN STOCHASTIC FRONTIER. Forum Agribisnis, [S. l.], v. 2, n. 2, p. 141–160, 2012. DOI: 10.29244/fagb.2.2.141-160. Disponível em: https://journal.ipb.ac.id/fagb/article/view/8882. Acesso em: 24 dec. 2025.