Gaya APA

Widyastuti, A. et al (2023). English Course Book for SMA/MA Grade XI (Cet. 1). Jakarta: Gramedia Edukasi Nusantara.

Gaya MLA

Widyastuti, Arum. et al. "English Course Book for SMA/MA Grade XI". Cet. 1 Jakarta: Gramedia Edukasi Nusantara, 2023. Text.