EL MAIDAH, N.; DWI SUHENDRA, C. 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, v. 12, n. 1, p. 175-179, 21 Jun. 2023.