Gaya APA
Susanto, A., Purba, D, P. (2009).
Leadpreneurship : stategic management approach in entrepreneurship .
Jakarta:
Erlangga.
Gaya MLA
Susanto, A.B.., Purba, Daniel, P..
"Leadpreneurship : stategic management approach in entrepreneurship".
Jakarta:
Erlangga,
2009.
Text.