Latowska , Karolina. “Quality Improvemants in the Municipalities and Enterprises of the Wielkopolska Province As a Condition of Regional Development”. Studia Oeconomica Posnaniensia 1, no. 6 (June 30, 2013): s. 19–31. Accessed September 3, 2026. https://journals.ue.poznan.pl/soep/article/view/3238.