No Inv.: 67050/P/00/1c
No Inv.: 67594-67598/S/00/5c
Judul asli : "Maths Through Play"
No Inv.: 4376-4380/P/00/5c~76941-76941/01/2c~119860-119862/P/Perp/09/3c~138138-138142/P/Perp/14/5c
No Inv.: 4498/P/00/1c
No Inv.: 66959-66960/P/00/2c
Judul asli : "Crisis in Education"
No Inv.: 4309-4313/P/99/5c~128083/P/Perp/10/1c
No Inv.: 284/P/00/1c
No Inv.: 120/S/99/1c