Masra, S. M. W., K. L. Goh, M. S. Muhammad, R. D. Djojodibroto, R. Sapawi, K. Kipli, and N. S. Shahrom. 2017. “Graphical User Interface (GUI) of Digital Index Evaluation System for Finger Clubbing Identification”. Scientific Research Journal 14 (2):99-112. https://doi.org/10.24191/srj.v14i2.9367.