BrunerJ.S. (1986). Toward a Theory of Instruction. Cambridge: Harvard University Press
2.
ColwellR. (1970). Music Achievement Tests. Chicago: Follet Publishing Co
3.
GoodT.L.BrophyJ.E. (1986). Educational Psychology: A Realistic Approach. White Plains, New York: Longman
4.
WigJ.A.BoyleID. (1982). The effect of keyboard learning experiences on middle school general music students' music achievement and attitudes. Journal of Research in Music Education, 30, 163–172.
