edited by H. H. Dodwell
University Press, 1929
Buku Teks
Kantor Penerbangan India,
Buku Teks
Spear, Percival, author
The University of Michigan Press, 1961
Buku Teks
Valth, Alfons
Herder & co. g. m. b. h, 1934
Buku Teks
Lamb, Beatrice Pitney
Frederick A. Preager , 1963
Buku Teks