Kowerski, Mieczysław, Jarosław Bielak, and Dawid Długosz. “The Assessment by Small and Medium Entrepreneurs of the Usefulness of Tools Used for the Diagnosis and Prognosis of the Economic Situation”. Regional Barometer. Analyses & Prognoses, no. 1 (15) (April 6, 2009): 85–102. Accessed May 13, 2025. https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1425.