41
Longman
| Pearson Education Korea:교학사 |
2009
대출불가
42
Longman
| Longman:Pearson |
2009
대출불가
45
Merriam Webster
| Merriam-Webster, Incorporated |
1988
제적자료
46
Murray, James Augustus Henry
| Project Gutenberg |
2012
E-Book
48
Richard A. Spears
| NTC |
1997
대출불가
49
Sheehan, Michael.
| McFarland |
2000
보존자료
50
Silverstein, Bernard.
| National Textbook Co. |
1997
제적자료