1. Publication manual of the American Psychological Association: the official guide to APA style Washington, DC : American Psychological Association, 2020. IFYP026 BUS472 CP516 CP541 CP605 CP607 ENG211 JOUR203 JOUR441 JOUR442 MPT503 PSY100 PSY200 PSY206 PSY372 PSY374 PSY402 PSY412 PSY505 SW508
2. The practice of social research Babbie, Earl R., Boston, MA : Cengage, 2020 JOUR441 JOUR203 JOUR442 SOC221