Munandar, Musthafa Haris, Masrizal Masrizal, and Yudi Prayoga. 2021. “Image Processing for Combat Charcoal Identification Based on Maturity Level”. Jurnal Mantik 5 (3):1598-1603. https://www.iocscience.org/ejournal/index.php/mantik/article/view/1553.