Nahari, Rosida Vivin, Arda Surya Editya, and Riza Alfita. “Feature Extraction of Tobacco Leaf Based on Discrete Cosine Transform (DCT)”. Journal of Applied Informatics and Computing 4, no. 1 (February 4, 2020): 8–12. Accessed February 23, 2025. https://jurnal.polibatam.ac.id/index.php/JAIC/article/view/1756.