Gaya APA
Newbold, P. (1995).
Statistics for Business and Economics FOURTH EDITION (4th ed).
united states of america:
Prentice-Hall International.
Gaya MLA
Newbold, Paul.
"Statistics for Business and Economics FOURTH EDITION".
4th ed
united states of america:
Prentice-Hall International,
1995.
Text.