Worchel, Stephen, Virginia A. Andreoli, and Robert Folger. 1977. “Intergroup Cooperation and Intergroup Attraction: The Effect of Previous Interaction and Outcome of Combined Effort”. Journal of Experimental Social Psychology 13: 131-40. doi:10.1016/S0022-1031(77)80006-1. Reference Link
Browna, Rupert. 1984. “The Effects of Intergroup Similarity and Cooperative Vs Competitive Orientation on Intergroup Discrimination”. British Journal of Social Psychology 23: 21-33. doi:10.1111/j.2044-8309.1984.tb00605.x. Reference Link
Weldon, David E., Donal E. Carlston, Kent Rissman, Leonard Slobodin, and Harry C. Triandis. 1975. “A Laboratory Test of Effects of Culture Assimilator Training”. Journal of Personality and Social Psychology 32: 300-310. doi:10.1037/0022-3514.32.2.300. Reference Link
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
Mumpower, Jeryl L., and Stuart W Cook. 1978. “The Development of Interpersonal Attraction in Cooperating Interracial Groups: The Effects of Success-Failure, Race and Competence of Groupmates, and Helping a Less Competent Groupmate”. International Journal of Group Tensions 8: 18-50. Referenced from psycnet.apa.org: The development of interpersonal attraction in cooperating interracial groups: The effects of success-failure, race and competence of groupmates, and helping a less competent groupmate. 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
Blanchard, Fletcher A, Russell H. Weigel, and Stuart W Cook. 1975. “The Effect of Relative Competence of Group Members Upon Interpersonal Attraction in Cooperating Interracial Groups”. Journal of Personality & Social Psychology 32: 519-30. doi:10.1037/h0077084. Reference Link
Blanchard, Fletcher A, and Stuart W Cook. 1976. “Effects of Helping a Less Competent Member of a Cooperating Interracial Group on the Development of Interpersonal Attraction”. Journal of Personality and Social Psychology 34: 1245-55. doi:10.1037/0022-3514.34.6.1245. Reference Link