PURMIYATI, Atik; SAFIRA, Thea. What is The Level Technical Efficiency of Dairy Cooperative Association of Indonesia In East Java Province During Covid-19?. East Java Economic Journal, [S. l.], v. 8, n. 2, p. 203–214, 2024. DOI: 10.53572/ejavec.v8i2.145. Disponível em: https://ejavec.id/index.php/ejavec/article/view/145. Acesso em: 6 mar. 2026.