Cagadas, D. O., D. S. Putra, K. M. P. Dunque, and M. Azmi. “Classifying Four Maturity Categories of Coffee Cherry Using CNN-VGG19”. Teknomekanik, vol. 7, no. 2, Dec. 2024, pp. 176-84, doi:10.24036/teknomekanik.v7i2.31072.