2. Qualitative research in practice: examples for discussion and analysis Merriam, Sharan B., San Francisco, CA : Jossey-Bass, a Wiley Brand, [2019] SW510
3. Social research methods: qualitative and quantitative approaches Neuman, W. Lawrence (William Lawrence), 1950- Boston, MA. : Pearson Education, 2019. SW510 SW341 SOC221 JOUR442
4. Using IBM SPSS statistics: an interactive hands-on approach Aldrich, James O., Thousand Oaks : SAGE Publications, [2019] SW510 SW342