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Talqis Nurdianto
http://webmail.umsb.ac.id/
Universitas Muhammadiyah Yogyakarta
Indonesia
Menulis untuk Berbagi
Mahyudin Ritonga
https://scholar.google.com/citations?user=BTsBXW8AAAAJ&hl=id
Muhammadiyah University of West Sumatera
Indonesia
research for development the science