Bibliografi : hlm. 359-365
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Judul Asli : Basic Montessori, Learning Activities for Under-Fives. Bibliografi : hlm. 376-377
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Bibliografi : hlm. 247-250
Bibliografi : hlm. 263-265 No Inv.: 132993/PSM/Perp/12/1c~141079/PSM/Perp/14/1c
Bibliografi : hlm. 531-536 No Inv.: 86692/PSM/Perp/03/1c~108960-108964/P/Perp/06/5c~114145-114148/P/Perp/08/4c~115035/SM/Perp/08/1c~118279-118281/P/Perp/09/3c~127102-127106/P/Perp/10/5c~
Bibliografi : hlm. 217-221 No Inv.: 140936/PSM/Perp/14/1c