Ouoba, F., Diakarya, B., & Talkibing, H. Y. (2019). Geostatistical Analysis with Copula-based Models of Madograms, Correlograms and Variograms. European Journal of Pure and Applied Mathematics, 12(3), 1052–1068. https://doi.org/10.29020/nybg.ejpam.v12i3.3389