Gaya APA
Bacal, Robert. (1999).
Performance management .
Bostong:
McGraw Hill.
Gaya Chicago
Bacal, Robert.
Performance management.
Bostong:
McGraw Hill,
1999.
Buku.
Gaya MLA
Bacal, Robert.
Performance management.
Bostong:
McGraw Hill,
1999.
Buku.
Gaya Turabian
Bacal, Robert.
Performance management.
Bostong:
McGraw Hill,
1999.
Buku.