Efitri Yulia, author
Lembaga Penelitian Universitas Indonesia, 1998
UI - Laporan Penelitian
Bambang Brodjonegoro, author
UI-Press, 2006
UI - Pidato
Sinaga, Christina Metwati, author
Program Pascasarjana Universitas Indonesia, 2009
UI - Tesis (Open)
Bishop, C.E
Mutiara, 1979
Buku Teks
Badan Penelitian dan Pengembangan Pertanian, Departemen Pertanian,
Majalah, Jurnal, Buletin