Gaya APA
Siahaya, W. (2016).
Manajemen Pengadaan : Procurement Management ABG (Academic Business Government) .
Bogor:
IN MEDIA.
Gaya MLA
Siahaya, Willem.
"Manajemen Pengadaan : Procurement Management ABG (Academic Business Government)".
Bogor:
IN MEDIA,
2016.
.