Gaya APA
Siahaya, Willem. (2016).
Manajemen Pengadaan (Procurement Management: Academic, Business, Government) (Revisi Pertama).
Bogor:
In Media.
Gaya Chicago
Siahaya, Willem.
Manajemen Pengadaan (Procurement Management: Academic, Business, Government).
Revisi Pertama
Bogor:
In Media,
2016.
Buku.
Gaya MLA
Siahaya, Willem.
Manajemen Pengadaan (Procurement Management: Academic, Business, Government).
Revisi Pertama
Bogor:
In Media,
2016.
Buku.
Gaya Turabian
Siahaya, Willem.
Manajemen Pengadaan (Procurement Management: Academic, Business, Government).
Revisi Pertama
Bogor:
In Media,
2016.
Buku.