Hidayat Abdullah E. THE ROLE OF ECONOMIC EFFICIENCY AND BUSINESS STRATEGY TO ACHIEVE COMPETITIVE ADVANTAGE: Received: 25th September 2023; Revised: 09th October 2023, 02nd November 2023; Accepted: 30th November 2023. pijss [Internet]. 2024 Mar. 15 [cited 2024 May 17];10(1):27-41. Available from: http://grdspublishing.org/index.php/people/article/view/2332