Jackson, S. L. (2016). Research Methods and Statistics: A critical thinking approach (5th ed.). cengage.
Chicago-čujuhus (17. p.)Jackson, Sherri L. Research Methods and Statistics: A Critical Thinking Approach. 5th ed. Delhi: cengage, 2016.
MLA-čujuhus (9. p.)Jackson, Sherri L. Research Methods and Statistics: A Critical Thinking Approach. 5th ed. cengage, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.