STUDY OF HYDROGEOLOGICAL FUNCTIONING OF COMPLEX TERMINAL (CT) AQUIFER, USING HYDROGEOCHEMICAL AND ISOTOPIC TOOLS: CASE STUDY OF OUED SOUF REGION (SOUTHEAST OF ALGERIA)Ali Nesrat, Serhane Brahmi, Chemseddine Fehdi, Tarek Djedid, Salim KHACHANAFood and Environment Safety JournalVolume 22، (2)2023Article Open access 1