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CONTRACT LIABILITIES | 12 Months Ended
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Dec. 31, 2018
CONTRACT LIABILITIES |
CONTRACT LIABILITIES | 17. CONTRACT LIABILITIES The breakdown of contract liabilities is as follows:
| a. |  | Current
|  | 2017 |  | 2018
Prepaid pulse reload vouchers |  | 4,800 |  | 4,413
Material rights for contract renewal |  | 44 |  | 65
Others |  | 583 |  | 774
Total |  | 5,427 |  | 5,252
| b. |  | Non-current
|  | 2017 |  | 2018
IRU |  | 205 |  | 258
Material rights for contract renewal |  | 305 |  | 394
Others |  | 14 |  | —
Total |  | 524 |  | 652
The balance of contract liabilities as of December 31, 2017 is presented as unearned income in the consolidated statements of financial position. Contract liabilities at the beginning period which recognised as revenue in current year is Rp5,495 billion.

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