Gaya APA

Budiastuti, S, A., Utami, M, S, D, S, N. (2023). Gramedia Edukasi Challenging English Course Book SMP/MTs Grade VII (Pertama). Jakarta: GramediaEdukasiNusantara.

Gaya MLA

Budiastuti, Siti, Arina., Utami, Melinda, Sariningsih, Dan, Selly, Nur. "Gramedia Edukasi Challenging English Course Book SMP/MTs Grade VII". Pertama Jakarta: GramediaEdukasiNusantara, 2023. Art Original.