Avery, P., and Ehrlich, S. (1995). Teaching American English Pronunciation. Oxford: Oxford University Press. 
Azzar. B. S. (2003). Fundamentals of English Grammar. Boston: Longman.
Brown, D. (2000). Principles of Language Learning and Teaching (4th Ed.). London: Longman.
Chiu, H, W. (2016). Teaching Components: Supra Segmentals or Segmentals.[ONLNE] Available at http://www.52englishzone.com/2016/03/teaching-components-suprasegmentals-or.html. [Accessed 3 Desember 2016]
Dekeyser, R. (2008). Implicit and explicit learning. In C. J. Doughty & M. H. Long (Eds.), The handbook of second language acquisition (pp. 313- 348). Malden, MA: Blackwell.
Ellis, R. (2009). Implicit and explicit learning, knowledge and instruction. In R. Ellis, S. Loewen, C. Elder, R. Erlam, J. Philip, & H. Reinders (Eds.), Implicit and explicit knowledge in second language learning, testing and teaching (pp. 3-25). Bristol, UK: Multilingual Matters.
Elliot, Stephen N., Thomas R. Kratochwill, Joan Littlefield, John F. Travers. 1998. Educational
Pshycology: Effective teaching, Effective Learning. Second Edition. Boston: Mc.Graw-Hill International.
Fromkin, V., Rodman, R., & Hyams, N. (2011). An Introduction to Language. Canada: Cengage Learning.
Hanner, J. (1991). The practice of English Language Teaching. London: Longman.
Hinofotis, F., & Bailey, K. (1980). American undergraduates' reactions to the communication skills of foreign teaching assistants. On TESOL, 80, 120-133.
Khairy. A. (2015). Pronunciation Errors of Plural Nouns (S/ES) by Kemenag Class Students at the State University of Surabaya Academic Year 2015.[ONLINE] Available at http://www.geges-ndl.com/2016/03/pronunciation-errors-of-plural-sound-s.html. [Accessed 30 Novemver 2016].
Gilakjani, A. P. (2011). A Study on the Situation of Pronunciation Instruction in ESL/EFL Classrooms. Journal of Studies in Education, 1(1), 1-15. Doi:10.5296/jse.v1i1.924
Gower, Roger, Diane Phillips, and Steve Walters. 1995. Teaching Practice Handbook. Oxford: Heinemann.
Green, B. N., Johnson, C. D., & Adams, A. (2006). Writing narrative literature reviews for peer-reviewed journals: secrets of the trade. Journal of chiropractic medicine, 5(3), 101-117.
 Papachristou, V. (2011). Explicit vs. Implicit Pronunciation Teaching to Greek children: the case of the acquisition of English vowels. .[ONLINE] Available at http://www.enl.auth.gr/symposium19/19thpapers/035_Papachristou.pdf. [Accessed 30 Novemver 2016]. 
Poole, Bernard J. 1998. Education for an Information Age Teaching in the Computerized
Classroom. Second Edition. Boston: Mc.Graw-Hill College.
Mathew, I. B. D. (1997). Errors in Pronunciation Of Consonants by Indonesian, Gayo and Acehnese Learners of English as A Foreign Language. (Master of Arts), Edith Cowan University.
Moore, Kenneth D.1999. Middle and Secondary School Instructional Methods. Second Edition. Boston: Mc.Graw-Hill College.
Nilsen, D.L.F., and Nilsen, A.P. (1973). Pronunciation Contrasts in English. New York: Regents Publishing Company, Inc. 
Carstairs-McCarthy, A. (2002). An Introduction of Morphology: Words and Their Structure. Edinburgh: Edinburgh University Press.
Norris, J. M., & Ortega, L. (2000). Effectiveness of L2 instruction: A research synthesis and quantitative meta-analysis. Language Learning, 50, 417-528.
Sholihah, U. (2014). The Differences between English and Indonesian Language. Available at http://download.portalgaruda.org/article.php?article=253168&val=6820&title=THE%20DIFFERENCES%20BETWEEN%20ENGLISH%20AND%20INDONESIAN%20LANGUAGE [16 December 2016].
Spada, N., & Tomita, Y. (2010). Interactions between type of instruction and type of language feature: A meta-analysis. Language Learning, 60, 263-308.
Storkel, H. L. (2003). Learning New Words II Phonotactic Probability in Verb Learning. Journal of Speech, Language, and Hearing Research, 46(6), 1312-1323.
Rajadurai, J. (2001). An investigation of the effectiveness of teaching pronunciation to Malaysian TESL students. Forum, Vol 39 No 3, July – September. Retrieved on 14 October, 2004, from http://exchanges.state.gov/forum/vols/vol39/no3/p10.htm 
Riani, I, O & Prayogo, A .(2012). An Analysis of Pronunciation Errors Made by Indonesian Singers. Malang: State University Malang.
Yule, G. (2010). The Study of Language (4th ed.). New York: Cambridge University Press.