Clarke, J.J., author
Routledge, 1997
Buku Teks
Peel, Robert
Henry Holt and Company, 1958
Buku Teks
Melania Wahjuni Kowara, author
1984
UI - Skripsi (Membership)
Lakin, Martin
McGraw-Hill, 1972
Buku Teks
edited by Douglas Pratt, Jon Hoover, John Davies, John Chesworth
Brill, 2015
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