أرسل هذا في رسالة قصيرة: Pricing and Green Promotion Decisions in a Retailer-Owned Dual-Channel Supply Chain with Multiple Manufacturers

 _    _    __   __    _____     _____    _    _   
| \  / ||  \ \\/ //  |__  //   |  ___|| | || | || 
|  \/  ||   \ ` //     / //    | ||__   | || | || 
| .  . ||    | ||     / //__   | ||__   | \\_/ || 
|_|\/|_||    |_||    /_____||  |_____||  \____//  
`-`  `-`     `-`'    `-----`   `-----`    `---`