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04-Information Sciences Letters
An International Journal
               
 
 
 
 
 
 
 
 
 
 
 
 

Author
 
   
Name : J. A. Br Sinaga
Address : Doctoral Graduate School of Mathematics, Universitas Sumatera Utara, Medan, Indonesia\\ Universitas HKBP Nommensen Pematangsiantar, Pematang Siantar, Indonesia
Email : julysinaga654@gmail.com
Telephone :

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