Rządziński, Lesław, and Anna Sworowska. “Parametric and Non Parametric Methods for Efficiency Assessment of State Higher Vocational Schools in 2009-2011”. Entrepreneurial Business and Economics Review 4, no. 1 (March 24, 2016): 95–112. Accessed August 1, 2025. https://eber.uek.krakow.pl/index.php/eber/article/view/94.