Betts, E. (1946). Foundations of reading instruction.New York: American Book.
2.
Hargis, C. (1972). A comparison of retarded and nonretarded children on the ability to use context in reading. American Journal of Mental Deficiency, 76, 726--728.
3.
Hargis, C. (1982). Teaching reading to handicapped children.Denver: Love.
4.
Taylor, W. (1953). Cloze procedure: A new tool for measuring readability. Journalism Quarterly, 30, 414--433.
