Nabila Widiastut, Widya Sylviana. TECHNICAL EFFICIENCY ON THE OPERATOR INDUSTRY OF TELECOMMUNICATION IN INDONESIA. J Arch.Egyptol [Internet]. 2020 Sep. 8 [cited 2025 Nov. 28];17(3):1541-50. Available from: https://www.archives.palarch.nl/index.php/jae/article/view/810