11
Grayman, W. M.
| American Society of Civil Engineers |
2012
12
안종호
| 한국환경정책·평가연구원 |
2012
18
Frederiksen, Harald D.
| World Bank |
1993
19
American Society of Civil Engineers
| American Society of Civil Engineers, Water Resourc |
1983
20
Brown, D. Clayton
| Fort Worth District, U.S. Army Corps of Engineers] |
1979