维基共享资源上的相关多媒体资源:黄油 Composition and characteristics of butter, The CanadianDairyCommission Manufacture of butter, The University of Guelph (页面存档备份,存于互联网档案馆)
ISBN 978-1-63121-624-4. (原始内容存档于2021-12-23) (英语). "A Mini-Guide to Polish Dairy". Culture.pl. Retrieved 31 March 2019. Maks Faktorowicz: Polak, który stworzył