1 |
Armstrong, J. Scot and Terry s. Overton, (1977), "Estimating Non response Bias in Mail Surveys" Journal of Marketing Research 14, pp. 396-402.
DOI
|
2 |
Daniel A. Crowl and Joseph F. Louvar, (1990), "Chemical Process Safety: Fundamentals with Applications", Prentice Hall, New Jersey. 4
|
3 |
Korea Gas Safety Corporation, (2016), Gas Accidents Statistic(2006-2016), Korea Gas Safety Corporation.
|
4 |
Korea Gas Safety Corporation, (2016), "2016 Gas supply safety equipment developed comprehensive measures", Korea Gas Safety Corporation.
|
5 |
D. Blanking, C.Eng., M.I. Gas E., (1983), "Gas distribution in Osaka: the Japanese way", Gas Engineering & Management, 19, pp. 433-456.
|
6 |
Shultz, Steven D. and Bruce E. Lindsay, (1990), "The Willingness to Pay for Ground water Protection," Water Resources Research 26, pp. 1869-1875.
|
7 |
Jordan, Jeffery L. and Abdelmoneim H. Elnagheeb, (1993), "Willingness to pay for Improvements in Drinking Water Quility," Water Reseurces Research 29, pp. 237-245.
DOI
|
8 |
Filion, F. L., : Estimating Bias Due Non response in Mail Surrys, (1976), " Public Opinion Quarterly 40, pp. 482-492.
DOI
|
9 |
Pearl, Dennis K. and David Fairley, (1985), "Testing for the Potential for Non response Bias in Sample Surveys," The Puglic Opinion qarterly 49, pp. 553-560.
|
10 |
Pope, C. Arden III and Jeffrey W. jones, (1990), " Value of Wildernesses Designation in Utah" Journal of Environmental Management 30, pp. 157-174.
|
11 |
Cochran, william G, (1997), Sampling Techniques, New York, Wiley.
|