求助：3篇英文文献

1、Exchange rate volatility,investment,and growth: Some new evidence     Author: Rojas-Suarez L

2、The impact of exchange rate uncertainty on the level of investment    Author:  Darby, J; Hallett, AH; Ireland, J, et al.

3、Exchange rate uncertainty and the level of investment in selected South-east Asian countries    Author:  Gyan Pradhan a;  Zeljan Schuster b; Kamal P. Upadhyaya b