Bieniasz, Anna, and Zbigniew Gołaś. “Sector Diversifying the Financial Liquidity of Enterprises in Poland”. Journal of Agribusiness and Rural Development 8, no. 2 (December 31, 2008): 13-24. Accessed December 1, 2021. http://www1.up.poznan.pl/jard/index.php/jard/article/view/903.