Prosečne GPS koordinate za poštanski broj 157-700: 37.551, 126.85

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Spisak gradova:
>> Naebalsan 1(il)-dong/내발산1동 157-700, Seoul/서울, Gangseo-gu/강서구, Deogwonjunghakgyo/덕원여자고등학교, GPS koordinate: 37.55097,126.84953
>> Naebalsan 1(il)-dong/내발산1동 157-700, Seoul/서울, Gangseo-gu/강서구, Deogwonyeojagodeunghakgyo/덕원중학교, GPS koordinate: 37.55092,126.84948