Kusin, J.A., author
Royal Tropical Institute, 1978
Buku Teks
Katirji, Bashar, author
Mosby Elsevier, 2007
Buku Teks
Ratliff, Richard C.
The Scarecrow Press,Inc., 1972
Buku Teks
Revankar, Ratna G., author
Fair Dickinson University Press, 1971
Buku Teks
Liddle, R. William, author
Yale University Press , 1970
Buku Teks