Bibliografi : hlm. 311-312
Judul asli : "Improving Children`s Learnings Ability"
Bibliografi : hlm. 233-240
No Inv.: 2356-2360/P/Perp/95/5c~2028-2032/P/Perp/96/5c~77401-77402/S/01/2c
No Inv.: 4951-4960/P/Perp/97/10c
No Inv.: 2349-2353/P/Perp/92/5c~124-133/P/Perp/96/10c
No Inv.: 1820-1821/Perp/85/2c~1462/S/Perp/88/1c~9091-9095/P/Perp/92/5c~2408-2417/P/Perp/95/10c~77603/S/01/1c
No Inv.: 110559-110563/P/Perp/07/5c
Bibliografi : hlm. 339-344