Gaya APA
Suharno, . (2019).
Essential English (Compulsory English Course Book for SMA/MA/SMK/MAK Grade X) .
Depok:
CV Arya Duta.
Gaya MLA
Suharno, .
"Essential English (Compulsory English Course Book for SMA/MA/SMK/MAK Grade X)".
Depok:
CV Arya Duta,
2019.
Text.