Campbell, M. and C. Greated.1988. The musician's guide to acoustics. New York: Schirmer.
2.
Circle, David, Don Hodges, Bob Lawrence, and Cliff Madsen.2004. “Music Education Liaison Report .” Music education panel final report, Health Promotion in Schools of Music Conference, University of North Texas, Fort Worth, TX, October 2, 2004.
3.
Deutsch, D., ed. 1999. The Psychology of Music. San Diego, CA: Academic Press.
4.
Goetze, M.1985. Factors affecting accuracy in children's singing (Doctoral dissertation, University of Colorado at Boulder). Dissertation Abstracts International, 46, 2955A. (UMI No. 8528488)
5.
Green, G.1990. The effect of vocal modeling on pitch-matching accuracy of elementary schoolchildren. Journal of Research in Music Education38: 225—231.
6.
McKinney, J.1994. Diagnosis and correction of vocal faults. Nashville, TN: Genevox.
7.
Miller, R.1996. The structure of singing. New York : Schirmer.
8.
Sims, W.L., R.S. Moore, and T.L. Kuhn.1982. Effects of female and male vocal stimuli, tonal pattern length, and age on vocal pitch-matching abilities of young children from England and the United States. Psychology of Music10(1): 104—108
9.
Welch, G.F.1994. The assessment of singing. Psychology of Music22: 3—19.
