Amalia, H.S., Athiyah, U. and Muhammad, A.W. 2023. The Application of Modified K-Nearest Neighbor Algorithm for Classification of Groundwater Quality Based on Image Processing and pH, TDS, and Temperature Sensors. Register. 9, 1 (Mar. 2023), 42–54. DOI:https://doi.org/10.26594/register.v9i1.2827.