King, MArtin Luthre
Harper & Row pub, 1964
Buku Teks
Thomas, Phillip Lee, 1943-, author
Institute of Southeast Studies, 1986
Buku Teks
Hart, B. H. Liddell
George Allen and Unwin, 1946
Buku Teks
Ratzan, Lee, author
[American Library association, American Library association], 2004
eBooks
Gorton, Gary B., author
Oxford University Press, 2012
Buku Teks