No Inv.: 114184/P/Perp/08/1c
No Inv.: 1564-1566/BD/Perp/91/3c
No Inv.: 121219/PH/Perp/09/1c~134228-134232,P/Perp/13/SM/5c~133974/SM/Perp/12/1c
No Inv.: 1390-1391/BD/Perp/86/2c
Judul asli : "Teaching Elementary School Mathematics for Understanding"
Bibliografi : hlm. 367-377 No Inv.: 141166/PSM/Perp/14/1c
No Inv.: 134735/S/Perp/13/1c
No Inv.: 131054/SM/Perp/12/1c
No Inv.: 110442-110446/P/Perp/07/5c~115002/SM/Perp/08/1c~122141-122145/P/Perp/09/5c~130354/PSM/Perp/11/1c
No Inv.: 129239/SM/Perp/11/1c