Ratih Lestarini, author
Universitas Indonesia, 2005
UI - Tesis (Membership)
Kementerian Pertanian Republik Indonesia; penyunting, Leli Nuryati, Budi Waryanto
Kementerian Pertanian RI, 2016
Buku Teks
Singh, Jasbir, author
Tata McGraw-Hill, 1984
Buku Teks
Grigg, David, author
Routledge, 1995
Buku Teks
Cooper, Elmer L., author
Delmar, 1987
Buku Teks