The Problems of the Study The Scope of the Study The Objectives of the Study

45 2. The writer hopes this research can give an advantage for the student to urge them to study more deeply about language acquisition especially about types of speech pattern 46 REFERENCES Clark, Eve. 2003. First Language Acquisition. Stanford:Cambridge University Press. Clark Clark. 1997. Psychology and Language.Stanford: Cambridge University Press. Ambridge, B Lieven, E.V.M. 2011. Language Acquisition:Contrasting Theoritically Approaches. Cambridge University Press. Ellis,Rod. 2001. Understanding Second Language Acquisition. Oxford:Oxford University Press. Olswang, Rodrigues, and Timler. Recommending Intervention for Toddlers with Specific Lnaguage Learning Difficulties : We May Not Have All the Answers, but We Know a Lot. American Journal of Speech –Language Pathology,vol 7. Bachtiar,Yusri.2013. Kemampuan Memproduksi Ujaran Anak Balita. Ikhtiyar. Vol.11, no.1 Rusyani, Endang. 2008. Pemerolehan Bahasa Indonesia Anak Usia 2,5 Tahun. thesis FIP Universitas Pendidikan Jakarta. Indonesia Law, Zeng and Lindsay.2012. Cost-Effectiveness of Interventions for Children with Speech, Language and Communication needs SLCN: A Review Using the Drummond and Jefferson 1996 ‘Referee’s Checklist. International Journal of Language and Communication Disorders. Vol.47, p 1-10. Retrieved 6 January 2015. http:www.ncbi.nih.govpubmed222688897 Snowling, Margareth and Hulme. 2012. Interventions for Children’s Language and Literacy Difficulties. International Journal of Language and Communication Disorders. vol. 47, p 27-34. Retrieved 6 January 2015. http:wileyonlinelibrary.comonlineopenonlineopen_terms. Mauliani, Sri. The Morpheme Acquisition of 2 up to 2 Years and a Half Kids. thesis FKIP Universitas Lambung Mangkurat Goodwyn, Acredolo and Brown. 2000. Impact of Symbolic Gesturing on Early Language Development. Journal of Nonverbal Behavior. Vol. 24., p 81- 103. retrieved 26 januari 2015. http:www.mybabycantalk.comcontentinformantionresearchimpact20 of20symbolic20gesturing.pdf.