@incollection{, A051C8B89B11C7C44F3330F576910520 , author={{SalwaAlharbi} and {Jazan University}}, journal={{Global Journal of Human Social Sciences}}, journal={{GJHSS}}2249-460X0975-587X10.34257/GJHSS, address={Cambridge, United States}, publisher={Global Journals Organisation}1981519 } @book{b0, , title={{The developing person through the lifes pan}} , author={{ KBerger }} , year={1994} , publisher={Worth Publishers} , address={New York} , note={3rd ed.} } @book{b1, , title={{Child language development: Learning to talk}} , author={{ SBochner } and { JJones }} , year={2003} , publisher={Whurr Publishers} , address={London} , note={2nd ed.} } @book{b2, , title={{Language and mind}} , author={{ NChomsky }} , year={2006} , publisher={Cambridge University Press} , address={New York, NY} , note={3th ed.} } @incollection{b3, , title={{Socio-linguistic development and the mature language user: Different voices for different occasions}} , author={{ GKress }} , booktitle={{Language & learning: Aninteractional perspective}} , editor={ G &Wells JNichollas } London and Philadelphia , publisher={Falmer Press} , year={1985} } @book{b4, , title={{Children's first language acquisition from a usage-based perspective: Handbook of cognitive linguistics and second language acquisition}} , author={{ ELieven } and { MTomasello }} , year={2008} , publisher={Routledge Taylor & Francis Group} , address={New York, NY} } @book{b5, , title={{1690) An Essay Concerning the Human Understanding; eBook of Gothenburg University (www.ub.gu.se) Publication}} , author={{ JLocke }} , address={Raleigh, N.C. Alex Catalogue} } @incollection{b6, , title={{Thai speech and language test for children between 1 and 2 years of age}} , author={{ BPrathanee } and { APongjanyakul } and { JChano }} , journal={{International Journal of Language & Communication Disorders}} 43 1 , year={2008} } @book{b7, , title={{Assessment in speech-language pathology: A resource manual}} , author={{ KShipley }} , year={2004} , publisher={Delmar Learning} , address={Clifton Park, NY} } @book{b8, , title={{Verbal Behavior}} , author={{ BFSkinner }} , year={1957} , publisher={Appleton-Century-Crofts} , address={New York} } @incollection{b9, , title={{The critical period for language acquisition: Evi-dence from second language learning}} , author={{ CSnow } and { MHoefnagel-Höhle }} 10.1111/1467-8624 , journal={{Child Development}} 49 4 , year={1978} , publisher={Ep} } @book{b10, , title={{How languages are learned}} , author={{ NSpada } and { PLightbown }} , year={2004} , publisher={University Press} , address={Oxford} } @book{b11, , title={{Language development: The essential readings}} , author={{ MTomasello } and { EBates }} , year={2001} , address={Malden, MA} } @book{b12, , title={{}} , author={{ UKOxford }} , publisher={Blackwell Publishers} } @book{b13, , title={{The study of language}} , author={{ Yule } and { G }} , year={1985} , publisher={Cambridge University Press} , address={New York} }