Kumar, Pankaj; Mishra, Binaya Kumar; Avtar, Ram; Chakraborty, Shamik (2021). "Quantifying future water environment using numerical simulations: a scenario-based approach for sustainable groundwater management plan in Medan, Indonesia". Global Groundwater. Elsevier. pp.585–596. doi:10.1016/b978-0-12-818172-0.00043-8. ISBN9780128181720. S2CID230551984. Medan is the capital city of North Sumatra province.
Kumar, Pankaj; Mishra, Binaya Kumar; Avtar, Ram; Chakraborty, Shamik (2021). "Quantifying future water environment using numerical simulations: a scenario-based approach for sustainable groundwater management plan in Medan, Indonesia". Global Groundwater. Elsevier. pp.585–596. doi:10.1016/b978-0-12-818172-0.00043-8. ISBN9780128181720. S2CID230551984. Medan is the capital city of North Sumatra province.