Tikász, Ildikó Edit. “Analyzing the Population Retaining Ability and the Ability to Economically Provide for a Population in the Micro Region of Püspökladány”. Acta Agraria Debreceniensis0, no. 26 (July 16, 2007): 210-219. Accessed November 26, 2020. https://ojs.lib.unideb.hu/actaagrar/article/view/3078.