'Akla, C. M. N.; Ruzanna, A.; Nugrahawati, A.; Fitria, R.; Firdaus, R.; Imanullah; Dermawan, A.; Putra, A. T.; Simanjuntak, A. S.; Mandhay, I. K. Coffee Grounds and Coconut Husk in Layered Filter Treatment for Efficiency Removal and Degradation Capacity of Pollution Parameters in North Aceh Waters. IJMEIR 2025, 8, 787-794.