Gaya APA
Fun & Easy Speaking English. (2019).
Yogyakarta:
Noktah.
Gaya Chicago
Fun & Easy Speaking English.
cet.1.
Yogyakarta:
Noktah,
2019.
.
Gaya MLA
Fun & Easy Speaking English.
cet.1.
Yogyakarta:
Noktah,
2019.
.
Gaya Turabian
Fun & Easy Speaking English.
Yogyakarta:
Noktah,
2019.
.