Herriot, James, 1916-1995, author
Gramedia Pustaka Utama, 2014
Buku Teks
Makarenko, A.S., author
Foreign Languages Publishing House, 1920
Buku Teks
Payne, Robert
Smitmark, 1969
Buku Teks
[T.t.] Unesco 1961
Buku Teks
Hamilton, Elizabeth, author
Oxford University Press, 2016
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