We Challenge Youth Project TELKOMSEL
Diposting oleh: 1 Diperbarui: 20 September 2017 15:50:00 Dikunjungi: 539

Telkomsel is a brand name of a GSM and UMTS Mobile phone network operator which operates in Indonesia. It was founded in 1995, and is a subsidiary of Telkom Indonesia. The company currently has 122 million subscribers

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