Farag F Abushanaf, Bashir A Nwer و Mukhtar Mahmud Elaalem (2024) "Mapping Soil pH and Electrical Conductivity Using Simple Kriging and Ordinary Kriging in Jeffara Plain Region", Bani Waleed University Journal of Humanities and Applied Sciences, 9(5), ص 382–395. doi:10.58916/jhas.v9i5.602.