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- [4] Prepaid monetary incentives and mail survey response rates [J]. AMERICAN STATISTICAL ASSOCIATION - 1996 PROCEEDINGS OF THE SECTION ON GOVERNMENT STATISTICS, 1996, : 206 - 209
- [6] COST-BENEFIT ANALYSIS - CRITICAL VIEW [J]. SOUTH AFRICAN JOURNAL OF ECONOMICS, 1975, 43 (02) : 233 - 244
- [10] A cost-benefit analysis of R&D tax incentives [J]. CANADIAN JOURNAL OF ECONOMICS-REVUE CANADIENNE D ECONOMIQUE, 2004, 37 (02): : 313 - 335