Gaya APA
Petterson, Robert A.. (2000).
Constructing Effective Questionnaires (Ed. 1, Cet. 1).
London:
Sage Publications.
Gaya Chicago
Petterson, Robert A..
Constructing Effective Questionnaires.
Ed. 1, Cet. 1
London:
Sage Publications,
2000.
Textbook.
Gaya MLA
Petterson, Robert A..
Constructing Effective Questionnaires.
Ed. 1, Cet. 1
London:
Sage Publications,
2000.
Textbook.
Gaya Turabian
Petterson, Robert A..
Constructing Effective Questionnaires.
Ed. 1, Cet. 1
London:
Sage Publications,
2000.
Textbook.