List of Articles Saturation Index Open Access Article Abstract Page Full-Text 1 - Water types and carbonate saturation model of groundwater in middle Governorate (Gaza strip, Palestine) Khalid Fathi Ubeid Mohammad Ramadan Al-Agha 10.30495/ijes.2020.673331 Open Access Article Abstract Page Full-Text 2 - Investigation of Hydro Geochemical Changes in Groundwater Case Study: Hamedan-Bahar Plain Sajad Fazel Tavasol Ali Ahmadi Mostafa Safari Komil Reza Dehghani Open Access Article Abstract Page Full-Text 3 - The Statistical Examination of Ionic Ratio and Saturation Indexes to Investigate the Origion of Underground Water Resource Salts from Delfan Tayebeh Karkhaneh ramin sarikhani Artims Ghasemi Open Access Article Abstract Page Full-Text 4 - Investigating karst development using hydrological and hydrochemical characteristics of springs (case study: Roein basin in North Khorasan province) mohammad motamedirad Leila gholi Mokhtari Shahram Bahrami Mohammad ali zanganeh asadi Open Access Article Abstract Page Full-Text 5 - Hydrogeochemical Evaluation of Groundwater in Lorestan Central Plain Maryam Safarbeiranvnd Hakimeh Amanipoor Sedigheh Battaleb-Looie Kamal Ghanemi Behrouz Ebrahimi