“Determinants Of Efficiency At Pt Perusahaan Listrik Negara (Persero) In 2019-2023 Using Two Stage Data Envelopment Analysis (Dea) Model ”. International Journal of Environmental Sciences (September 2, 2025): 83–93. Accessed November 13, 2025. https://theaspd.com/index.php/ijes/article/view/8477.