Kartajaya, H. (2018). Citizen 4.0. Gramedia Pustaka Utama.
Chicago Style (17th ed.) CitationKartajaya, Hermawan. Citizen 4.0. Gramedia Pustaka Utama, 2018.
MLA (8th ed.) CitationKartajaya, Hermawan. Citizen 4.0. Gramedia Pustaka Utama, 2018.
Warning: These citations may not always be 100% accurate.