Nguyen TT, Nguyen BQ, Nguyen PD, Hien CT. Minimizing Electricity Fuel Cost of Thermal Generating Units by Using Improved Firefly Algorithm. J. Eng. Technol. Sci. [Internet]. 2019Feb.28 [cited 2026Jan.24];51(1):133-47. Available from: https://journals.itb.ac.id/index.php/jets/article/view/7756