Bórawski, P. “DEVELOPMENT ESTIMATION OF SMALL AND MEDIUM ENTERPRISES SECTOR ON THE EXAMPLE OF WARMIA AND MAZURY PROVINCE”. Acta Scientiarum Polonorum. Oeconomia, Vol. 4, no. 2, Dec. 2005, pp. 5-15, https://js.wne.sggw.pl/index.php/aspe/article/view/3655.