Gaya APA
Timpe, A, D., Boedidharmo, S. (1999).
Kepemimpinan = The art and science of business management : Leadership .
Jakarta:
Wiley.
Gaya MLA
Timpe, A., Dale., Boedidharmo, Susanto.
"Kepemimpinan = The art and science of business management : Leadership".
Jakarta:
Wiley,
1999.
Text.