“THE IMPACT OF KOSZALIN AND SŁUPSK ON THE SOCIO-ECONOMIC DEVELOPMENT LEVEL OF MIDDLE POMERANIA COMMUNES” (2018) Research Bulletins of the Faculty of Economic Sciences, 1(21), pp. 159–177. Available at: https://ezeszyty.wne.tu.koszalin.pl/index.php/zeszyty/article/view/92 (Accessed: 20 July 2025).