Gaya APA
Hamper, R, J., Baugh, L, S.
(1996).
Handbook For Writing Proposals
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America:
NTC Busines Books.
Gaya MLA
Hamper, Robert, J., Baugh, L., Sue.
"Handbook For Writing Proposals".
America:
NTC Busines Books,
1996.
Referencec.