No Inv.: 1016-1021/P/Perp/81/6c
Bibliografi : hlm. 129- 131
Bibliografi : hlm. 237-240
Judul asli : "Creative Thinking and Brainstorming"
No Inv.: 128330/S/Perp/10/1c
Bibliografi : hlm. 175-176
Bibliografi : hlm. 189
Bibliografi : hlm. 222-228
No Inv.: 75996-75997/P/01/2c~83537-83541/P/Perp/FIP/02/4c~89393/PSM/Perp/04/1c