Jackson, S. L. (2016). Research Methods and Statistics: A critical thinking approach (5th ed.). cengage.
Tohutoru Kātū Chicago (17th ed.)Jackson, Sherri L. Research Methods and Statistics: A Critical Thinking Approach. 5th ed. Delhi: cengage, 2016.
Tohutoro MLA (9th ed.)Jackson, Sherri L. Research Methods and Statistics: A Critical Thinking Approach. 5th ed. cengage, 2016.
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