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RELATED PARTY TRANSACTIONS - Distribution of Sim Card and Pulse Reload Voucher (Details) - IDR (Rp) Rp in Billions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Other related entities |  |  |
Transactions with related parties |  |  |
Total | Rp 9,085 | Rp 8,477 | Rp 8,449
% of total revenues | 6.95% | 6.61% | 7.26%
Kisel |  |  |
Transactions with related parties |  |  |
Total | Rp 4,221 | Rp 4,181 | Rp 4,600
% of total revenues | 3.23% | 3.26% | 3.95%
Tiphone |  |  |
Transactions with related parties |  |  |
Total | Rp 4,390 | Rp 3,888 | Rp 3,441
% of total revenues | 3.36% | 3.03% | 2.96%
Gratika |  |  |
Transactions with related parties |  |  |
Total | Rp 474 | Rp 408 | Rp 408
% of total revenues | 0.36% | 0.32% | 0.35%

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