No Inv.: 59260-59263/S/00/41c
Bibliografi : hlm. 167 - 168
No Inv.: 1062-1065/P/Perp/92/5c~118536-118538/P/Perp/09/3c
Bibliografi : hlm. 254-258
Bibliografi : hlm. 143-151
Judul asli : Prestressed concrete, third edition
Bibliografi : hlm. 392-399
Bibliografi : hlm. 341-347 No Inv.: 144553/SM/Perp/14/1c