No Inv.: 2341/Perp/89/1c
Judul asli : "Overcoming Indecisiveness"
Bibliografi : hlm. 118-124
No Inv.: 258/P/Perp/98/1c
No Inv.: 3080-3081/P/99/2c
No Inv.: 4414-4423/P/00/10 C.
No Inv.: 4309-4313/P/99/5c~128083/P/Perp/10/1c
Judul asli :"Prestressed concrete"
Judul asli :"Great Scientific Experiments Twenty Experiments..."
No Inv.: 76799-76808/S/01/10c