Gaya APA

Newbold, P. et al (1995). Pearson International Edition Statistics for Business and economics Sixth Edition (6th ed). United States of Ameria: Pearson Prentice Hall.

Gaya MLA

Newbold, Paul. et al. "Pearson International Edition Statistics for Business and economics Sixth Edition". 6th ed United States of Ameria: Pearson Prentice Hall, 1995. Text.