Gaya APA
Abduh, B.
(2019).
Easy Steps to Learn English: For Students & Beginners
(
Cetakan 1)
.
Yogyakarta:
Checkist.
Gaya MLA
Abduh, Bilif.
"Easy Steps to Learn English: For Students & Beginners".
Cetakan 1
Yogyakarta:
Checkist,
2019.
Buku English.