Gaya APA
Baker, P. (2016).
Handbook of training evaluation and measurement methods. (Cetakan Ke-4).
New York:
Distributor/Gulf Publishing Company..
Gaya MLA
Baker, Paul.
"Handbook of training evaluation and measurement methods.".
Cetakan Ke-4
New York:
Distributor/Gulf Publishing Company.,
2016.
Prodi TBI.