Waniak-Michalak, Halina, and Ewelina Zarzycka. “Financial And Non-Financial Factors Motivating Individual Donors To Support Public Benefit Organizations”. Comparative Economic Research. Central and Eastern Europe 18, no. 1 (March 20, 2015): 131–152. Accessed February 11, 2026. https://czasopisma.uni.lodz.pl/CER/article/view/7057.