Kurdi, M. , Farhadian, H. , Eslamkish, T.. "Hydro-Geochemistry of Qare-Sou Catchment and Gorgan Gulf, Iran: Examining Spatial and Temporal Distribution of Major Ions and Determining the River’s Hydro-Chemical Type". World Academy of Science, Engineering and Technology, Open Science Index 118, International Journal of Environmental and Ecological Engineering, (2016), 10(10), 1022 - 1036.