Zegar, Józef St., and Wioletta Wrzaszcz. “The Holism Principle in Agriculture Sustainable Development”. Economic and Environmental Studies 17, no. 4 (44) (November 25, 2020): 1051–1069. Accessed November 22, 2024. https://czasopisma.uni.opole.pl/index.php/ees/article/view/2731.