Gaya APA
Longo, D, R., Bohr, D. (1990).
Quantitative Methods in Quality Management : A Guide for Practitioner .
USA:
Rajawali.
Gaya MLA
Longo, Daniel, R.., Bohr, Deborah.
"Quantitative Methods in Quality Management : A Guide for Practitioner".
USA:
Rajawali,
1990.
Text.