1. Adelberg, A. H., & Razek, J. R. (1984). The Cloze procedure: A methodology for determining the understandability of accounting textbooks. Accounting Review, 59(1), 109–122.
2. Armbruster, B. B., Osborn, J. H., & Davison, A. L. (1985). Readability formulas may be dangerous to your textbooks. Educational Leadership, 42(7), 18–20.
3. Arnsdorf, V.E. (1963). Readability of basal social studies materials [with Comment]. The Reading Teacher, 16(4), 243-246.
4. Ateşman, E. (1997). Türkçede okunabilirliğin ölçülmesi. Dil Dergisi, 58, 71-74.
5. Bailin, A., & Grafstein, A. (2001). The linguistic assumptions underlying readability formulae: A critique. Language & Communication, 21(3), 285–301.