Gaya APA
Whinston, W, D, H, A, B., Nasution, S, B. (1977).
Introduction to data management .
Illinois:
Richard D. Irwin.
Gaya MLA
Whinston, William, D., Haseman,, Andrew, B.., Nasution, Syamsul, Bahri.
"Introduction to data management".
Illinois:
Richard D. Irwin,
1977.
Text.