BoringE. G.The book review. American Journal of Psychology, 1951, 64, 281–283.
2.
GillenB.Readability and human interest scores of thirty-four current introductory psychology texts. American Psychologist, 1973, 28, 1010–1011.
3.
GillenB.Readibility and human interest scores of thirty-two introductory psychology texts: Update and clarification. Teaching of Psychology, 1975, 2, 175–176.
4.
LandriganD. T.PalladinoJ. J.A reply to Gillen. American Psychologist, 1974, 29, 571–572.
5.
YouthR. A.A cautionary note. American Psychologist, 1974, 29, 572–573.