Artikel Jurnal
Parker, Steve
Firefly Book, 1999
Buku Referensi
White, W.T.; Last, P.R.; Stevents, J.D.; Yearsley, G.K.; Fahmi; Dharmadi
Australian Center for International Agricultural Research, 2006
Buku Referensi
Bambang Suseno, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2018
UI - Tesis (Membership)
Stead, David G., author
Angus and Robertson, 1963
Buku Teks