Gaya APA
Siahaya, W. (2016).
Manajemen pengadaan procurement management ABG (Academic Business Government) (Cetakan III).
Bogor:
In Media.
Gaya MLA
Siahaya, Willem.
"Manajemen pengadaan procurement management ABG (Academic Business Government)".
Cetakan III
Bogor:
In Media,
2016.
Text.