Gaya APA
Groover, M, P. (2007).
Work System and the Methods, Measurement, and Maanagement of Work .
United State of America:
Pearson Education.
Gaya MLA
Groover, Mikell, P..
"Work System and the Methods, Measurement, and Maanagement of Work".
United State of America:
Pearson Education,
2007.
Text.