Danik, L. “PERCEPTION OF COOPERATION AND TRUST IN INTERNATIONAL COOPERATION : A STUDY ON POLISH EXPORTERS AND IMPORTERS COOPERATION WITH PARTNERS FROM CHINA AND GERMANY”. Acta Scientiarum Polonorum. Oeconomia, Vol. 13, no. 4, Dec. 2014, pp. 55-65, https://js.wne.sggw.pl/index.php/aspe/article/view/4142.