1. Audesirk T, Audesirk G, and Byers BE. Life on Earth (3rd ed.). Upper Saddle River, NJ: Prentice Hall, 2003.
2. Beiswenger RE, Stepans JI, and McClurg PA. Developing science courses for prospective elementary teachers: an experimental program at the University of Wyoming succeeds in preparing better science teachers. J Coll Sci Teach 27: 253–257, 1998.
3. Black KM. Improved science content for pre-service teachers: modeling of teaching strategies based on current science education reform literature. Annu. Meet. Natl. Assoc. Res. Sci. Teach.: ERIC ED 369 647, 1994.
4. Differences in Attitude and Ability of Biology Majors, Nonmajors and Pre-Service Teachers
5. Downing JE, Filer JD, and Chamberlain RA. Science process skills and attitudes of pre-service elementary teachers. Mid-South Edu. Res. Assoc.: ERIC ED 416 191, 1997.