Mazurek, Grzegorz, and Jolanta Tkaczyk. “INFORMAL CHANNELS OF COMMUNICATION USED BY ENTERPISES”. Acta Scientiarum Polonorum. Oeconomia 15, no. 2 (June 30, 2016): 103-112. Accessed May 3, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/4228.