Baazi Houria, Nemili Zohra, Necer AbdeLdjabar, & Saoudi Messaoud. (2024). GROUNDWATER POLLUTION SOURCE USING PRINCIPAL COMPONENT ANALYSIS IN GUELMA PLAIN, NORTHEAST ALGERIA. International Journal of Innovative Technologies in Social Science, (3(43). https://doi.org/10.31435/rsglobal_ijitss/30092024/8248