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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _nama(self):
 """Mengembalikan representasi string untuk nama entri ini. :returns: String representasi nama entri :rtype: str """


        hasil = self.nama
        if self.nomor:
            hasil += " [{}]".format(self.nomor)
        if self.kata_dasar:
            hasil = " » ".join(self.kata_dasar) + " » " + hasil
        return hasil