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Trade and other payables (Tables)
 12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Summary of Trade and Other Payables
   
2019
   
2018
 
Payable to suppliers
   2,728,485    2,372,512 
Accrued treasury share, universal service fund contribution and contributions to the ICTA’s expenses
   562,536    455,496 
Taxes payable
   523,584    465,966 
Accrued selling and marketing expenses
   100,792    91,747 
Other
   202,074    402,453 
  
 
 
   
 
 
 
  
 
4,117,471
 
  
 
3,788,174