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심리학이 청춘에게 묻다 | |
| 정철상 | ||
ǻ | 라이온북스 | ||
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잠의 치유력 | |
| 쉴라 레이버리 | ||
ǻ | 이채 | ||
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블랙홀 시장창조 전략 | |
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Water, Water Everywh | |
Ironically, the world’s most precious resource is also one of its most plentiful. More than three-quarters of the world is literally covered in water. Yet, only 1 percent of the world’s water supply is fit to drink. Ninety-seven percent is salt water, and 2 percent is frozen in glaciers or polar ice caps. | ||
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ǻ | 비즈니스북스 | ||