Gaya APA
Nasution, A, H., NOER, B, A. (2007).
ENTREPRENEURSHIP MEMBANGUN SPIRIT TEKNOPRENEURSHIP .
Yogyakarta:
ANDI.
Gaya MLA
Nasution, Arman, Hakim., NOER, Bustanul, Arifin.
"ENTREPRENEURSHIP MEMBANGUN SPIRIT TEKNOPRENEURSHIP".
Yogyakarta:
ANDI,
2007.
Text.