Gaya APA
Wiersbe, W., Wiersbe, D. (1986).
The Elements Of Preaching .
Wheaton, Illinois:
Tyndale House Publishers, Inc..
Gaya MLA
Wiersbe, Warren., Wiersbe, David.
"The Elements Of Preaching".
Wheaton, Illinois:
Tyndale House Publishers, Inc.,
1986.
Text.