Communicator style and teacher effectiveness: Adult learners versus traditional undergraduate students1 - Comadena, Mark E. and Semlak, William D. and Escott, Marcia D. (Communication Research Reports, 1992)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wODgyNDA5OTIwOTM1OTg5Nw