Gjennomsnittlig GPS-koordinater for postnummer 21343: 2.981, 99.787
Notering byer:
>> Sumber Sari 21343, North Sumatra, Tanjung Balai, GPS-koordinater: 2.98097,99.78704
Notering byer:
>> Sumber Sari 21343, North Sumatra, Tanjung Balai, GPS-koordinater: 2.98097,99.78704