Higazi, Sohair F, Dina H. Abdel-Hady, and Samir Ahmed Al-Oulfi. 2013. “Application of Spatial Regression Models to Income Poverty Ratios in Middle Delta Contiguous Counties in Egypt”. Pakistan Journal of Statistics and Operation Research 9 (1), 93-110. https://doi.org/10.18187/pjsor.v9i1.272.