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“Enhanced Efficiency of Coffee Fruit Ripe Sorting System through Ultrasound-Based Optimization and Fuzzy Logic: Peningkatan Efisiensi Sistem Sortasi Matang Buah Kopi Melalui Optimasi Berbasis Ultrasound Dan Logika Fuzzy”. JISTECH: Journal of Information Science and Technology 12, no. 1 (June 21, 2023): 175–179. Accessed May 7, 2026. https://www.jistechunipa.com/index.php/istech/article/view/218.