Gaya APA

et.al, ., PURWANINGTIAS, D. (2020). E-Business : Konsep Dasar E-Business Di Era Digital (1). Yogyakarta: Graha Ilmu.

Gaya MLA

et.al, ., PURWANINGTIAS, Deasy. "E-Business : Konsep Dasar E-Business Di Era Digital". 1 Yogyakarta: Graha Ilmu, 2020. Teks.