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Gaya APA

Drucker, P, F. (1985). Inovasi Dan Kewiraswastaan : Praktek Dan Dasar-Dasar . : Erlangga.

Gaya MLA

Drucker, Peter, F.. "Inovasi Dan Kewiraswastaan : Praktek Dan Dasar-Dasar". : Erlangga, 1985. Text.