HORVÁTHOVÁ, Jarmila - IŽARÍKOVÁ, Gabriela - SUHÁNYIOVÁ, Alžbeta. Applying statistical methods in verification of non-financial indicators as the key measures of business performance. In Journal of management and business : research and practice. - Prešov : Fakulta manažmentu Prešovskej univerzity, 2015. ISSN 1338-0494, 2015, roč. 7, č. 2, s. 35-53.