Worchel, Stephen, and Nancy Norvell. 1980. “Effect of Perceived Environmental Conditions During Cooperation on Intergroup Attraction”. Journal of Personality & Social Psychology 38: 764-72. doi:10.1037/0022-3514.38.5.764. Reference Link
Blanchard, Fletcher A, Leonard Adelman, and Stuart W Cook. 1975. “Effect of Group Success and Failure Upon Interpersonal Attraction in Cooperating Interracial Groups”. Journal of Personality & Social Psychology 31: 1020-30. doi:10.1037/h0076953. Reference Link
