Amalia, Hasna Shafa, Ummi Athiyah, and Arif Wirawan Muhammad. 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):42-54. https://doi.org/10.26594/register.v9i1.2827.