Gaya APA
Kittner, M., Northcutt, R. (1985).
Basic A Structed Approach .
California:
The Benjamin/Cummings Publishing Company.
Gaya MLA
Kittner, M.., Northcutt, R..
"Basic A Structed Approach".
California:
The Benjamin/Cummings Publishing Company,
1985.
Text.