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

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發送短信 : On the class of weak CS-modules / Preecha Jantagan