發送短信 : A contrastive study on grammatical subject as a clause element in English and in Vietnamese from perspective of systemic-functional grammar

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