Bibliografi : hlm. 197-206
Bibliografi : hlm. 249 - 257
Bibliografi : hlm. 155-159
Bibliografi : hlm. 331-334
Bibliografi : hlm. 68-70
Judul asli : :"Early childhood education today"
Bibliografi : hlm. 159-162
No Inv.: 123004/P/Perp/10/1c
No Inv.: 122999/P/Perp/10/1c
No Inv.: 106777/S/Perp/06/1c