Steinka, Izabela. “Perception of Unconventional Food by Consumers in the Age Group of 50–60 Years Old”. Scientific Journal of Gdynia Maritime University 1, no. 114 (June 30, 2020): 23–32. Accessed December 22, 2024. https://sjgmu.umg.edu.pl/index.php/sjgmu/article/view/29.