edited by Melvin G. Blase
Iowa State University Press, 1971
Buku Teks
edited by Takekazu Ogura
Fuji Publishing, 1967
Buku Teks
Booth, Anne, author
Allen and Unwin, 1988
Buku Teks
Hayami, Yujiro, author
Johns Hopkins Press, 1971
Buku Teks
Bello, Walden F., author
Institute for Food and Development Policy, 1982
Buku Teks