| 1 | Basic principles of speech Sarett, Alma Johnson | |
| 2 | Public speaking today Prentice, Diana | |
| 3 | Speaking by doing : a speaking-listening text Buys, William E. | |
| 4 | Speech Commission on Higher Education | |
| 5 | Speech 2003-2005 Porntip Kanjananiyot | |
| 6 | Speeches 2006-2007 Commission on Higher Education |