Gaya APA

Bahar, Y, R. (2021). Digital transformation 4.0 telkomcel case studies : from minus into postive net income with triple digit growth . Makassar: PT. Nas Media Indonesia.

Gaya MLA

Bahar, Yogi, Rizkian. "Digital transformation 4.0 telkomcel case studies : from minus into postive net income with triple digit growth". Makassar: PT. Nas Media Indonesia, 2021. Buku Cetak.