Anastasi, A. (1997). Psychological testing (7th ed.). New York: Macmillan.
2.
Bracken, B. A. (1987). Limitations of preschool instruments and standards for minimal levels of technical adequacy. Journal of Psychoeducational Assessment, 5, 313-326.
3.
Hammill, D. D., Brown, V. L., Larsen, S. C., & Wiederholt, J. L. (1980). Test of Adolescent Language. Austin, TX: Pro-Ed.
4.
Hammill, D. D., Brown, V. L., Larsen, S. C., & Wiederholt, J. L. (1994). Test of Adolescent and Adult Language-Third Edition (TOAL-3). Austin, TX: Pro-Ed.
5.
Williams, L. M. (1986). The relationship between language competence and social skills of mainstreamed adolescent students. Unpublished doctoral dissertation, University of Texas at Austin.