Brelik, A. “VALORIZATION OF PUBLIC GOODS IN THE ENVIRONMENT OF AGRITOURISM FARMS - AN ATTEMPT AT MODELING”. Acta Scientiarum Polonorum. Oeconomia, Vol. 15, no. 2, June 2016, pp. 27-36, https://js.wne.sggw.pl/index.php/aspe/article/view/4222.