Gaya APA
Turbo Basic. (1987).
California:
Borland International,inc.
Gaya Chicago
Turbo Basic.
.
California:
Borland International,inc,
1987.
.
Gaya MLA
Turbo Basic.
.
California:
Borland International,inc,
1987.
.
Gaya Turabian
Turbo Basic.
California:
Borland International,inc,
1987.
.