Gaya APA
Widiyanti,Dra., N.
(1999).
MANAGEMEN KOPERASI
(
6)
.
JAKARTA:
PT.RINEKA CIPTA.
Gaya MLA
Widiyanti,Dra., Ninik.
"MANAGEMEN KOPERASI".
6
JAKARTA:
PT.RINEKA CIPTA,
1999.
Printed Book.