QUALTER, Terence H. Propaganda and psychological warfare. Chicago : Burtyrki Books, [2020]. ©2020. 1 online zdroj (144 stran). Dostupné na internetu: <https://ebookcentral.proquest.com/lib/ujep-ebooks/detail.action?docID=6127574> ISBN 978-1-83974-304-7.