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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
good
oleh ariana pham (2018-12-28)
wonderful This was among the best posts from your team it let me learn many new things. QWOP