Integrated Geoelectrical and Geological Investigation of a Quaternary Paleo-Depositional Environment in the Haripur Basin, Northern Pakistan: Implications for Groundwater System oleh Umair Bin Nisar, Siddique Akhtar Ehsan, Muhammad Farooq, Ramesh Raj Pant, Nangyal Ghani Khan, Faizan Ur Rehman Qaiser, Furqan Mahmud Butt