Gaya APA
m.m, D, H, R, S. (1994).
Evaluating Training Programs : The Four Levels .
San Francisco:
berrett - koehler publishers.
Gaya MLA
m.m, Drs., H., Ramli, Sairin,.
"Evaluating Training Programs : The Four Levels".
San Francisco:
berrett - koehler publishers,
1994.
Text.