Gaya APA
Punch, Keith F.. (1998).
Introduction to Social Research Quantitative and Qualitative Approaches .
London:
SAGE Publications Ltd..
Gaya Chicago
Punch, Keith F..
Introduction to Social Research Quantitative and Qualitative Approaches.
London:
SAGE Publications Ltd.,
1998.
Text.
Gaya MLA
Punch, Keith F..
Introduction to Social Research Quantitative and Qualitative Approaches.
London:
SAGE Publications Ltd.,
1998.
Text.
Gaya Turabian
Punch, Keith F..
Introduction to Social Research Quantitative and Qualitative Approaches.
London:
SAGE Publications Ltd.,
1998.
Print.