Coordinate GPS medie per codice postale 29428: 1.094, 103.977

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lista delle città :
>> Sungai Harapan 29428, Riau Islands, Batam, coordinate GPS: 1.04568,104.03051
>> Tanjung Pinggir 29428, Riau Islands, Batam, coordinate GPS: 1.14219,103.92321