Nugroho, Hendro, Wahyu Widodo, and Andy Rachman. “Pattern Recognition Bird Sounds Based on Their Type Using Discreate Cosine Transform (DCT) and Gaussian Methods”. Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control 4, no. 3 (July 30, 2019): 233-240. Accessed May 3, 2024. https://kinetik.umm.ac.id/index.php/kinetik/article/view/791.