Gaya APA

Putra, I, M., Ishartadi, A. (2021). Business Model And Business Plan Di Era 4.0 (Cet.2). Bandung: Quadrant.

Gaya MLA

Putra, Indra, Mahardika., Ishartadi, Arif. "Business Model And Business Plan Di Era 4.0". Cet.2 Bandung: Quadrant, 2021. Text.