Banning, W., author
De Arbeiderspers, 1950
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Foreign Languages Publishing House, 1892
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Keuth, Herbert, author
Cambridge University Press, 2005
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Wilson Wijaya, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi (Membership)
Shapiro, Ian, author
Yayasan Obor Indonesia, 2003
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