Mochamad Fajar Insani and Atik Purmiyati 2019. TECHNICAL EFFICIENCY OF SAVING AND LOAN COOPERATIVES IN GERBANGKERTASUSILA, EAST JAVA PROVINCE: A TWO-STAGE ANALYSIS. East Java Economic Journal. 3, 2 (Sep. 2019), 153–167. DOI:https://doi.org/10.53572/ejavec.v3i2.44.