White, John, author
Pledged to development a study of international consortia and the strategy of aid / John White
The Overseas Development Institute, 1967
 Buku Teks
Patterns in electronic journal usage: challenging the composition of geographic consortia
 Artikel Jurnal
Payne, James, author
Getting started in public speaking
Illinois National Textbook, 1994
 Buku Teks
Lucas, Stephen E., author
The art of public speaking
New York : McGraw-Hill, 1995,
 Buku Teks
Carpio, Rustica C., author
Private and public speaking
Yayasan Obor Indonesia, 2005
 Buku Teks
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