1. Conducting research in psychology: measuring the weight of smoke Pelham, Brett W., 1961- Thousand Oaks : SAGE Publications, [2019] PSY371 PSY200
2. Research methods in psychology Shaughnessy, John J., 1947- New York, NY : McGraw-Hill Education, c2015. CP541 PSY412 PSY402 PSY200 PSY206
