omitted potentially practical studied urban goal type interesting sekarang share context pendek kursi magazine situation there verbal conducting faced people relevancy acquisition cooing occur hear extensively government show even immediately mention tremendou researcher answered knowledge word deal toba adjective whenever teach stated need expression sementara research young facilitate application sensitive difficult birth reception period important old 2006 practically total development factor get huge register content third grammatical assisting create during speak depth basi age environment mental want significant area childhood exist INTRODUCTION talk construction intonation subtle minum they definition hungry remarkable meaningful who previously simple citie showing language media expected indonesia main mereka never distinguish date many life talking lemari expres system every provide understanding explain melihat presented beside study affect clark family mouth observation effectively about relation rhythm cooperate say investigate convey later tampan understand understood biological conversation adverb answer guideline communicate preposition enrich populou abilitie cognitive movement radio selalu relatively dan acquire theory nation articulation great particular classified phenomenon indonesian follow 2000 parent data feel interested second utterance kind mature child new abnormal whether develop reference specifically activitie communication two figuring start dia it voice differ discover limit doubt integrate acquired characteristic valuable one relationship find external more year speech among considered most look meja relevant rule objective still preference bermain will much part uttering fact batak future teacher only very usually problem structural tinggi approache into caretaker pronoun come membaca acquiring bahasa hi daily innate finding susu same make proces big evolution input some function born regarded cultural analysi carefully official aspect verb influenced adjustment infant kamu schirmer product studying know children theoretically studie internal able using single observe television formulated occurred psychological involved other significance makan term normally hurt fourth namely compare literature another clearly written obtained bardie 2004 darjowidjojo well because motivate covered friend perfectly themselve thirsty idea world disorder early mother cantik broad give CHAPTER them used being when background functioning proposal 1999 different served mode crying further change imitate number called influence produce boysson how babie comprehensive their administration writer question hand also sound related but small over like curiou repeated especially ha through while theoretical clear meaning rural suffer try made introducing such facilitating intellectual son human buku everyday predictable complex disturbance utter adult out tell achieve stage consist busines useful sentence social aku use noun carry learn conjunction michael require requirement contribution uniquely observed mean thing around not scope gift live community abstract help first seriously analyze 2003