Language testing
Edward Arnold ,
 Majalah, Jurnal, Buletin
Profit testing
Universitas Indonesia, 1998
 UI - Skripsi (Membership)
Electronic testing
compiled and edited by L. L. Farkas
McGraw-Hill, 1966
 Buku Teks
Cartz, Louis
Nondestructive testing
ASM International, 1999
 eBooks
Tensile testing
edited by J.R. Davis
ASM International, 2004
 eBooks