Barker, L L.(1984). An investigation of the effect of presentations by effective and ineffective speakers on listening test scores. Southern Speech Communication Journal, 49(3), 309-318. doi:10.1080/10417948409372608
MLA CitationBarker, Larry L. "An Investigation of the Effect of Presentations By Effective and Ineffective Speakers On Listening Test Scores". Southern Speech Communication Journal, 49.3 ( 1984 ): 309-318.
Remember to check citations for accuracy before including them in your work.