Gaya APA
Siahaya, W. (2016).
Manajemen Pengadaan Procurement Management ABG (Academic Business Goverment ) (Cet.3).
bogor:
In Media.
Gaya MLA
Siahaya, Willem.
"Manajemen Pengadaan Procurement Management ABG (Academic Business Goverment )".
Cet.3
bogor:
In Media,
2016.
Text.