Judul asli : "Werktuigbouwkundig Tekenan en Tekeninglezen Theorie"
Judul asli : "Elektrotec in Kort Bestek"
Judul asli : "Fachkunde fur Elektroberufe"
No Inv.: 1390-1414/P/Perp/92/5c~135368/SM/Perp/13/1c
Judul asli : "Water Power Engineering"
No Inv.: 82860/S/Perp/02/1c
No Inv.: 195-196/AF/Perp/94/2c
No Inv.: 1201-1208/P/Perp/95/8c