Muhammad Sukirlan
Communication strategies and their linguistic features
Graha Ilmu, 2017
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Mulvihill, Mary Lou
Human diseases : systemic approach
Prentice-Hall, 2001
 Buku Teks
Mulvihill, Mary Lou
Human diseases : a systemic approach
Appletton & lange , 1991
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Systemic practice and action research
 Majalah, Jurnal, Buletin
Russian English : history, functions, and features
edited by Zoya G. Proshina and Anna A. Eddy
Cambridge University Press, 2016
 Buku Teks