Fitzpatrick, J. Sanders, J. & Worthen, B (2003). Program evaluation: Alternative approaches and practical guidelines. (3rd ed.) Allyn & Bacon.
Garret, J.E. & Holcomb, S. (2005, Fall) Meeting the needs of Immigrant students with limited English ability, International Education 35, 49-62
Hays, D.G. (2008). Assessing multicultural competence in counselor trainees: A review of instrumentation and future directions. Journal of Counseling and Development, 86, (1), 95-101.
Krashen, S. (1985) Principles and practice in second language acquisition, Oxford: Pergamon