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Riki Candra
Universitas Muhammadiyah Sumatera Utara
Indonesia
Puspa Meganningrum
Universitas Muhammadiyah Sumatera Utara
Indonesia
Muhammad Prayudha
Universitas Muhammadiyah Sumatera Utara
Indonesia
Rini Susanti
Universitas Muhammadiyah Sumatera Utara
Indonesia