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Dicky Surya Handoko
Pascasarjana Universitas Muhammadiyah Sumatera Utara
Jalan Denai No. 217 Medan
Indonesia
Muis Fauzi Rambe
Pascasarjana Universitas Muhammadiyah Sumatera Utara
Jalan Denai No. 217 Medan
Indonesia