Drew, C. J., Hardman, M. L., & Hosp, J. L. (2008). Designing and conducting research in education. Sage.
Lua i Stíl Chicago (17ú heag.)Drew, Clifford J., Michael L. Hardman, agus John L. Hosp. Designing and Conducting Research in Education. Los Angeles, Calif: Sage, 2008.
Lua MLA (9ú heag.)Drew, Clifford J., et al. Designing and Conducting Research in Education. Sage, 2008.
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