تنقية بواسطة: الموضوع
السجلات المعروضة 1 -- 7 من 1
Cell-phone samples (1) |
Coverage bias (1) |
Dual-frame samples (1) |
Electronic white pages (1) |
Listed telephone samples (1) |
Random Digit Dialing (1) |
Telephone sampling (1) |
Cell-phone samples (1) |
Coverage bias (1) |
Dual-frame samples (1) |
Electronic white pages (1) |
Listed telephone samples (1) |
Random Digit Dialing (1) |
Telephone sampling (1) |