Gjennomsnittlig GPS-koordinater for postnummer 20912: 3.412, 99.043
Notering byer:
>> Firdaus Estate 20912, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.41191,99.04275
Notering byer:
>> Firdaus Estate 20912, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.41191,99.04275