Peters, Pamela
Biotechnology: a guide to genetic engineering
Wm.C. Brown Pub., 1993
 Buku Referensi
Guide for the design and use of concrete poles
American Society of Civil Engineers, 1987
 Buku Referensi
Bradley, Elihu F.
High-performance castings : a technical guide
ASM International, 1989
 Buku Referensi
Comprehensive biotechnology : the principles, applications, and regulations of biotechnology in industry, agriculture, and medicine
editor, Murray Moo-Young
Pergamon Press, 1985
 Buku Referensi
Managing construction projects : a guide to processes and procedures
edited by A.D. Austen, R.H. Neale
International Labour Office, 1995
 Buku Referensi