Sample Design in Business Research.
1961 ◽
Vol 10
(3)
◽
pp. 190
1962 ◽
Vol 125
(1)
◽
pp. 158
1961 ◽
Vol 12
(3)
◽
pp. 191-192
1961 ◽
Vol 56
(295)
◽
pp. 740
◽
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