BODIAN, B.D.P. and Tambing, F.S. 2024. GROUNDWATER TESTING TESTING THE CHEMICAL AND PHYSICAL PROPERTIES OF GROUNDWATER: PENGUJIAN SIFAT KIMIA DAN FISIKA AIRTANAH . JISTECH: Journal of Information Science and Technology. 13, 2 (Nov. 2024). DOI:https://doi.org/10.30862/jistech.v13i2.428.