Yudi Widodo
Brawijaya University. Faculty of Agriculture, 1993
Buku Teks
Wolfe, T. K.
McGraw-Hill, 1959
Buku Teks
Kalshoven, L.G.E., author
Ichtiar Baru - Van Hoeve, 1981
Buku Teks
National Academy of Sciences, 1980
Buku Teks
Widya Maharani, author
2016
UI - Tesis (Membership)