Judul asli : "Teaching Children Self-Discipline"
No Inv.: 3042/P/Perp/98/1c
Judul asli : "Process of Educational Planning"
No Inv.: 3628/P/99/1c
Judul asli : "You Can Teach Your Child About Numbers"
No Inv.: 67050/P/00/1c
Judul asli : "Maths Through Play"
No Inv.: 910/P/98/1c
No Inv.: 4485/P/00/1c
No Inv.: 1724/S/96/1c