Hi! I could have sworn I’ve visited this web site before but after looking at many of the articles I realized it’s new to me. Anyways, I’m certainly pleased I came across it and I’ll be book-marking it and checking back frequently!

INDEXED BY:

         

This work is licensed under a Creative Commons Attribution 4.0 International License. 

CSRID Journal Editor's Office:

Universitas Potensi Utama. Jl. K.L. Yos Sudarso Km 6,5 No.3-A Telp. (061) 6640525 Ext. 214 Tanjung Mulia Medan 20241