B. Ahmed, “Wrapper Feature Selection Approach Based on Binary Firefly Algorithm for Spam E-mail Filtering”, jscdm, vol. 1, no. 2, pp. 44–52, Dec. 2020, Accessed: Jun. 30, 2024. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/jscdm/article/view/7295