Gaya APA
m.pd, I, Y.
(1990).
The practice of management
(
Edisi 9)
.
columbus:
charles e. merrill publishing company.
Gaya MLA
m.pd, Ika, Yatri,.
"The practice of management".
Edisi 9
columbus:
charles e. merrill publishing company,
1990.
Text.