Farag F Abushanaf, وآخرون. "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, م 9, عدد 5, ديسمبر، 2024, ص 382-95, https://doi.org/10.58916/jhas.v9i5.602.