PURWANTO, D., & PURWANTO, D. (1997). Komunikasi Bisnis Djoko Purwanto. Erlangga.
Chicago Style (17th ed.) CitationPURWANTO, Djoko, and Djoko PURWANTO. Komunikasi Bisnis Djoko Purwanto. Erlangga, 1997.
MLA (8th ed.) CitationPURWANTO, Djoko, and Djoko PURWANTO. Komunikasi Bisnis Djoko Purwanto. Erlangga, 1997.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.