Gaya APA

Izzuddin,, S, A., Afif, I, H, -, A. (2018). Upgrade! . Yogyakarta: ProU Media.

Gaya MLA

Izzuddin,, Solikhin, Abu., Afif, Irin, Hidayat, -, Abu. "Upgrade!". Yogyakarta: ProU Media, 2018. Text.