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            _____                ___      _____   
  ____     |  ___||   ____      / _ \\   /  ___|| 
 |    \\   | ||__    |    \\   / //\ \\ | // __   
 | [] ||   | ||__    | [] ||  |  ___  ||| \\_\ || 
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 |_|`-`    `-----`   |_|`-`   `-`   `-`   `---`   
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發送短信 : Analisis portfolio optimal menggunakan model indeks tunggal di Bursa Efek Jakarta