عبد رب الرسول بن موسى العمران

Al-Omran, A.M., W.A. Al-Mustafa and M.M. Mursi. 1996. Spatial variability of some soil physical properties II. Kriging and Cokriging. J. King Saud Univ. Agric. Sci. 8(2):229-243. (In Arabic).