Boyce, T. E., & Geller, E. S. (2001). Encouraging college students to support pro-environment behavior: Effects of direct versus indirect rewards. Environment & Behavior, 33(1), 107-125.

Aytülkasapoglu, M., & Ecevit, M. C. (2002). Attitudes and behavior toward the environment: The case of Lake Burdur in Turkey. Environment and Behavior, 34(3), 363-377.

Aragón-Correa, J., Matías-Reche, F., & Senise-Barrio, M. (2004). Managerial discretion and corporate commitment to the natural environment. Journal of Business Research, 57(9), 964-975.

Burger, J. (1999). The foot-in-the-door compliance procedure: A multiple-process analysis and review. Personality and Social Psychology Review, 3(4), 303-325.

Bartell, T. & St. George, A. (1974). A trend analysis of environmentalists' organizational commitment, tactic advocacy, and perceptions of government. Journal of Voluntary Action Research, 3, 3-4, 41-46.

Burn, S. M., & Oskamp, S. (1986). Increasing community recycling with persuasive communication and public commitment. Journal of Applied Social Psychology, 16, 1, 29-41.

Dickerson, C. A., Thibodeau, R., Aronson, E., & Miller, D. (1992). Using cognitive dissonance to encourage water conservation. Journal of Applied Social Psychology, 22, 11, 841-854.

De Young, R. (1993). Changing behavior and making it stick: The conceptualization and management of conservation behavior. Environment and Behavior, 25, 4, 485-505.

Dunlap, R. E. (1991). Public opinion in the 1980s: Clear consensus, ambiguous commitment. Environment, 33, 10-15, 32-37.