No Inv.: 96/PSM/Perp/97/1c
No Inv.: 425/P/Perp/98/1c
Bibliografi : hlm. 265-268
Judul asli : "Studio Tips for Artists and Graphic Designers"
No Inv.: 965-966/P/Perp/99/2c
Judul asli edisi Jerman : "Schule des Sehens"
No Inv.: 3449/P/99/1c
No Inv.: 67050/P/00/1c
No Inv.: 3015-3019/P/99/5c
No Inv.: 3936/P/99/1c