Gaya APA
Drawing research and development. (1992).
England:
Longman.
Gaya Chicago
Drawing research and development.
.
England:
Longman,
1992.
Buku.
Gaya MLA
Drawing research and development.
.
England:
Longman,
1992.
Buku.
Gaya Turabian
Drawing research and development.
England:
Longman,
1992.
Buku.