Ramadhan, Puji Sari, Tugiono Tugiono, and Saiful Nurarif. 2019. “Expert System of Detection Defisiensi Imun Uses K-Nearest Neighbor Method”. The IJICS (International Journal of Informatics and Computer Science) 3 (2):41-48. https://doi.org/10.30865/ijics.v3i2.1372.