Gjennomsnittlig GPS-koordinater for postnummer 20985: 3.382, 98.923
Notering byer:
>> Serba Jadi 20985, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.3817,98.9227
Notering byer:
>> Serba Jadi 20985, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.3817,98.9227