Gaya APA
Bookworm Hobbies. (1990).
Singapore:
Bookworm Club.
Gaya Chicago
Bookworm Hobbies.
.
Singapore:
Bookworm Club,
1990.
Text.
Gaya MLA
Bookworm Hobbies.
.
Singapore:
Bookworm Club,
1990.
Text.
Gaya Turabian
Bookworm Hobbies.
Singapore:
Bookworm Club,
1990.
Print.