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Bibliografi : hlm. 492-522 Diterjemahkan dari buku aslinya Language Develompment in Early Childhood
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Bibliografi : hlm. 253
Bibliografi : hlm. 415-418
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Bibliografi : hlm. 319-325 No Inv.: 114598/PH/Perp/08/1c~124939-124943/P/perp/10/5c~128104/PH/Perp/10/1c~128532/SM/Perp/10/1c~129403/SM/Perp/11/1c~136150/SM/Perp/13/1c~140532/SM/Perp/14/1c
Bibliografi : hlm. 273-280 No Inv.: 146666, 146667/P/Perp/14/2c