Foster, Douglas
Managing for profit / Douglas Foster
Longman, 1972
 Buku Teks
Douglas, Colin
Sickness and health/ Colin Douglas
Heinemann, 1991
 Buku Teks
Douglas Jaga
Kelingkang /Douglas Jaga
Dewan Bahasa dan Pustaka , 1998
 Buku Teks
Stewart, Douglas Alexander, 1913-, author
Writers of the bulletin / Douglas Stewart
The Australian Broadcasting Commision, 1977
 Buku Teks
Fowler, Douglas
Reading Nabokov / Douglas Fowler
Cornell University Press, 1974
 Buku Teks
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