發送短信 : Role and Impact of Energy in the Business Cycle

 __   _     _____    _    _     _____     ______  
| || | ||  |  ___|| | \  / ||  |  ___||  /_   _// 
| '--' ||  | ||__   |  \/  ||  | ||__    `-| |,-  
| .--. ||  | ||__   | .  . ||  | ||__      | ||   
|_|| |_||  |_____|| |_|\/|_||  |_____||    |_||   
`-`  `-`   `-----`  `-`  `-`   `-----`     `-`'