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

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Text this: Perbandingan beberapa indeks kriteria penentuan jumlah optimal kelompok=Comparison of some criterion indexes for determining the optimal number of clusters