AndreasenAlan. “Personalizing Mail Questionnaire Correspondence,”Public Opinion Quarterly, 34(Summer 1970), 273–7.
2.
CoxWilliam E.“Response Patterns to Mail Surveys,”Journal of Marketing Research, 2(November 1966), 392–7.
3.
DaviesOwen. Design and Analysis of Industrial Experiments.New York: Hafner Publishing, 1967.
4.
FordNeil M.“Advance Letter in Mail Surveys,”Journal of Marketing Research, 3(May 1967), 202–4.
5.
FrancelE. G.“Mail Administered Questionnaires: A Success Story,”Journal of Marketing Research, 2(February 1966), 89–92.
6.
GullahornJeanne, and GullahornJohn. “An Investigation of the Effect of Three Factors on Response to Mail Questionnaires,”Public Opinion Quarterly, 27(Summer 1963), 294–6.
7.
KephartWilliam, and BresslerMarvin. “Increasing the Response to Mail Questionnaires, A Research Study,”Public Opinion Quarterly, 22(Summer 1958), 123–32.
8.
NicholsRobert C., and MeyerMary Alice. “Timing Postcard Follow-ups in Mail Surveys,”Public Opinion Quarterly, 30(Summer 1966), 306–7.
9.
SimonRaymond. “Response to Personal and Form Letters in Mail Surveys,”Journal of Advertising Research, 7(March 1967), 28–30.
10.
WotrubaThomas R.“Monetary Inducements and Mail Questionnaire Response,”Journal of Marketing Research, 2(November 1966), 398–400.