Gaya APA
Siahaya, W, . (2016).
Manajemen Pengadaan = Procurement Management ABG Academic Business Government (Cet. Ke-3).
Bogor:
In Media.
Gaya MLA
Siahaya, Willem, .
"Manajemen Pengadaan = Procurement Management ABG Academic Business Government".
Cet. Ke-3
Bogor:
In Media,
2016.
Text.