Gaya APA

Smith, A, O, Y, P, F, E, A. (). The Invincible Company (Strategyzer Series: Business Model G . : Elex Media Komputindo Pt.

Gaya MLA

Smith, Alexander, Osterwalder,, Yves, Pigneur,, Fred, Etiemble,, Alan. "The Invincible Company (Strategyzer Series: Business Model G". : Elex Media Komputindo Pt, . Text.