Utama, Sunariya, et al. “Feature-Based Method in Text Steganography: Evaluating Single-Bit and Dual-Bit Techniques for Secure Hidden Message”. Semarak International Journal of Machine Learning, vol. 7, no. 1, Dec. 2025, pp. 18-30, https://semarakilmu.my/index.php/sijml/article/view/886.