Gaya APA
Hutauruk, J, D, J, B, G., Heckert, J, B.
(1981).
Controllership
(
3)
.
:
.
Gaya MLA
Hutauruk, James, D.Willson,, John, B.Campbell,, Gunawan., Heckert, J., B..
"Controllership".
3
:
,
1981.
Text.