Notes
- Ross , Raymond S. 1965 . Speech Communication 3 – 13 . Englewood Cliffs
- Barclay , William . 1959 . The Plain Man's Book of Prayers 16 – 21 . London
- Harkness , Georgia . 1957 . Understanding the Christian Faith 124 – 125 . New York
- Monroe , Alan H. and Ehninger , Douglas . 1962 . Principles and Types of Speech , 5th ed. 280 – 302 . Chicago