Al-Enezy A, Al-Owaidi M, Hussein M. Using isotopes for dating and residence time of groundwater in an aquifer, a case study at Al-Najaf, Middle Iraq: DOI:10.48129/kjs.17107. KJS [Internet]. 2023Jan.8 [cited 2026Apr.24];50(1B). Available from: https://journalskuwait.org/kjs/index.php/KJS/article/view/17107