1. Qualitative inquiry & research design: choosing among five approaches Creswell, John W, Thousand Oaks, California : Sage, [2025] SOC221
2. Experiments: planning, analysis, and optimization Wu, Chien-Fu, Hoboken, NJ : John Wiley & Sons, Inc., 2021. GED217
4. Single-case research designs: methods for clinical and applied settings Kazdin, Alan E. New York ; Oxford University Press, 2011. CP607
5. Qualitative inquiry & research design: choosing among five approaches Creswell, John W. Thousand Oaks : Sage Publications, c2007. SOC221
6. Statistics for experimenters: design, innovation, and discovery Box, George E. P., Hoboken, N.J. : Wiley-Interscience, [2005]. GED217