Colgan, Jenny
William Morrow, an imprint of HarperCollinsPublishers, 2016
Buku Teks
d`Alpuget, Blanche
Penguin Books, 1983
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d`Alpuget, Blanche
Penguin Books, 1992
Buku Teks
Russel, Frederic A.
McGraw-Hill, 1955
Buku Teks
Russell, Frederic A.
McGraw-Hill, 1959
Buku Teks