Jackson, S. L. (2016). Research Methods and Statistics: A critical thinking approach (5th ed.). cengage.
Cita Chicago (17th ed.)Jackson, Sherri L. Research Methods and Statistics: A Critical Thinking Approach. 5th ed. Delhi: cengage, 2016.
Cita MLA (9th ed.)Jackson, Sherri L. Research Methods and Statistics: A Critical Thinking Approach. 5th ed. cengage, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.