Bijankhan, M. (2005). Phonology optimality theory. Tehran: Samt (In Persian).
                                                                                                                Casali, R.F. (1997). Vowel elision in hiatus contexts: Which vowels goes? Language, 73 (3), 493-533.
                                                                                                                Everett, D. (1996). Prosodic levels and constraints in Banawá and Suruwahá. In D.L. Everett (Ed.), Optimality Theory and Arawan prosodic system. University of Pittsburgh.
                                                                                                                Farzaneh, M.A. (1978). Basics of Azerbaijani grammar. Tehran: Farzaneh (In Persian).
                                                                                                                Kager, R. (1999). Optimality theory. Cambridge University Press.
                                                                                                                Kramer, M. (2003). Vowel harmony and correspondence theory. Belin: Mouton de Gruyter.
                                                                                                                McCarthy, J. (2002). A thematic guide to optimality theory. Cambridge: Cambridge university Press.
                                                                                                                McCarthy, J. (2008). Doing optimality theory applying theory to data. Cambridge: Blackwell.
                                                                                                                McCarthy, J.J., & Prince, A. (1995): Faithfulness and reduplicative identity. In L. Bateman, M. O’Keefe, E. Reilly, & A. Werle (Eds.), Papers in Optimality Theory III: University of Massachusetts Occasional Papers (University of Massachusetts Occasional Papers in Linguistics).
                                                                                                                Nevins, A., & Chitoran, I. (2008). Phonological representations and the variable patterning of glides. Lingua, 118 (12), 1979-1997.
                                                                                                                Prince, A., & Smolensky, P. (1993). Optimality Theory: Constraint interaction in Generative Grammar (Technical Report no. RuCCS-TR-2). New Brunswick, NJ: Rutger University Center for Cognitive Science.
                                                                                                                Prince, A., & Smolensky, P. (2004). Optimality Theory: Constraint interaction in Generative Grammar. Malden, MA: Blackwell.
                                                                                                                Razinejad, S.M., & Bijankhan, M. (2012). Conspiracy in Azarbaijani Turkish. Journal of Language Research, 3 (2), 43-56 (In Persian).
                                                                                                                Spencer, A. (1996). Phonology: Theory & description.. Oxford: Blackwell.
                                                                                                                Uffmann,C. (2011). Epenthetic vowel quality in loanwords: empirical and formal issues. Lingua 116. 1079-1111.
                                                                                                                Vaux, B. (2001). Consonant epenthesis and hypercorrection. 75th Annual Meeting of the Linguistic Society of America, Washington, DC.
                                                                                                                Zygis, M., (2010). Typology of consonantal insertions. Papers from the Linguistics Laboratory, 52, 111-140.