Spencer, Baldwin, 1860-1929, author
Macmillan, 1899
Buku Teks
Mabuchi, Touichi
Buku Teks
Tindale, Norman B., author
Australian National University Press, 1974
Buku Teks
Audas, James Wales
Whitcombe & Tombs, 1947
Buku Teks
Hope, A. D., author
Angus and Roberson Publishers, 1974
Buku Teks