Armstrong, J. B. & Impara, J. C. (1991). The impact of an environmental education program on knowledge and attitude. Journal of Environmental Education, 22, 4, 36-40.

Hausbeck, K. W. & Milbrath, L. W. & Enright, S. M. (1992). Environmental knowledge, awareness and concern among 11th-grade students: New York State. Journal of Environmental Education, 24, 1, 27-34.

Leeming, F. C., Porter, B. E., Dwyer, W. O., Cobern, M. K. & Oliver, D. P. (1996). Effects of participation in class activities on children's environmental attitudes and knowledge. Journal of Environmental Education, 28, 2, 33-42.

Petrzelka, P., Korsching, P. F. & Malia, J. E. (1996). Farmers' attitudes and behavior toward sustainable agriculture. Journal of Environmental Education, 28, 1, 38-44.

Berger, I. E. (1997). The demographics of recycling and the structure of environmental behavior. Environment and Behavior, 29, 4, 515-531.

Schultz, P. W. (1995). A field experiment on interventions to improve curbside recycling. Dissertation Abstracts International: Section B: The Sciences and Engineering, 56, 5-B,

Bang, Hae-Kyong; Ellinger, Alexander E.; Hadjimarcou, John; Traichal, Patrick A. (2000). "Consumer concern, knowledge, belief, and attitude toward renewable energy: An application of the reasoned action theory.". Psychology & Marketing, 17, 6, 449-468.

Bixler, Robert D; Floyd, Myron F. (1999). Hands on or hands off? Disgust sensitivity and preference for environmental education activities. . Journal of Environmental Education, 30, 3, 4-11.

Culen, Gerald R; Volk, Trudi L. (200). Effects of an extended case study on environmental behavior and associated variables in seventh-and eighth-grade students. . Journal of Environmental Education. , 31, 2, 9-15.

Chawla, Louise. (1999). Life paths into effective environmental action. . Journal of Environmental Education, 31, 1, 15-26.