1. AlgeoJ.ButcherC. A. (2014). The origins and development of the English language. Boston, MA: Wadsworth Cengage Learning.
2. Parameter setting in second language phonology and syntax.;E.Broselow;Second Language Research,1991
3. The interrelation between speech perception and phonological acquisition from infant to adult;C.Brown;Second language acquisition and linguistic theory,2000
4. Celce-MurciaM.BrintonD. M.GoodwinJ. M.GrinerB. (2010). Teaching pronunciation: A course book and reference guide (2nd ed.). Cambridge, UK: CUP.
5. ChaucerG.BensonL. D. (1987). The Riverside Chaucer. Boston, MA: Houghton Mifflin Co.