edited by Kenneth W. Thompson
University Press of America, 1980
Buku Teks
Thoolen, Hans, author
Martinus Nijhoff Publishers, 1986
Buku Teks
Peter, Chris Maina
Greendwood Press, 1990
Buku Teks
Ratna Susanti, author
2016
UI - Skripsi (Membership)
Peters, Anne, author
Cambridge University Press, 2016
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