Gaya APA
Siahaya, W. (2016).
Manajemen Pengadaan Procurement Management ABG (Academic Bussines Government) .
Bogor:
Penerbit In Media.
Gaya MLA
Siahaya, Willem.
"Manajemen Pengadaan Procurement Management ABG (Academic Bussines Government)".
Bogor:
Penerbit In Media,
2016.
Text.