Judul asli :"When listening Comes Alive"
No Inv.: 86369/PSM/Perp/03/1c
No Inv.: 83487/P/Perp/FIP/02/1c
Judul asli :"Quality time anytime : 200 activies to make the most every moment with your child"
No Inv.: 1187/Perp/74/1c
No Inv.: 117724/P/Perp/09/1c
Bibliografi : hlm. 351-356
Bibliografi : hlm. 292 - 293
Bibliografi : hlm. 239 - 246