ter Haar, Beryl Philine. “Corporate Social Responsibility in Times of the COVID-19 Pandemic”. Z Problematyki Prawa Pracy i Polityki Socjalnej 19, no. 2 (November 27, 2020): 1–36. Accessed December 5, 2025. https://journals.us.edu.pl/index.php/ZPPPIPS/article/view/10420.