Suhindarto, et al. “Technical Efficiency and Its Influence on The Growth of The Manufac- Turing Sector in East Java: A Case Study on The Gerbangkertasusila Plus Development Area”. East Java Economic Journal, vol. 4, no. 2, Dec. 2020, pp. 229-47, doi:10.53572/ejavec.v4i2.47.