Gaya APA
Siahaaya, W. (2016).
Manajemen Pengadaan Procurement managementt ABG (Academic, Business, Government) (Cet.3.; Jil.1).
Bogor:
In Media.
Gaya MLA
Siahaaya, Willem.
"Manajemen Pengadaan Procurement managementt ABG (Academic, Business, Government)".
Cet.3.; Jil.1
Bogor:
In Media,
2016.
Text.