jwan sabah mustafa and Dana Khider Mawlood, “Mapping Groundwater Levels in Erbil Basin”, ASRJETS-Journal, vol. 93, no. 1, pp. 21–38, Apr. 2023, Accessed: Sep. 17, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/8805