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

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Text this: Estimator Stein dan perkembangannya