Average GPS coordinates for Tertek Postcode location: -7.926, 112.051. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Tertek on map:

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Listing cities & postcodes (2):
>> East Java, 64215 Tertek, Kediri, GPS coordinates: -7.7813,112.2103
>> East Java, 66216 Tertek, Tulung Agung, GPS coordinates: -8.07045,111.89185