Gaya APA
Kurniawan, E. et al (2021).
Basic English Grammar: A Practical Guide for Students and Teachers (Cet.1).
Bandung:
UPI PRESS.
Gaya MLA
Kurniawan, Eri. et al.
"Basic English Grammar: A Practical Guide for Students and Teachers".
Cet.1
Bandung:
UPI PRESS,
2021.
Text.