Public speaking apprehension, decision‐making errors in the selection of speech introduction strategies and adherence to strategy - Beatty, Michael J. (Communication Education, 1988)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wMzYzNDUyODgwOTM3ODczMQ