Etherington, John R.
Environment and plant ecology
John Wiley & Sons, 1982
 Buku Teks
Etherington, John R.
Environment and plant ecology / John R. Etherington
Wiley Eastern, 1976
 Buku Teks
Etherington, John R.
Environment and plant ecology / John R. Etherington
John Wiley & Sons, 1975
 Buku Teks SO
Barbour, Michael G.
Terrestrial plant ecology
The Benjamin/Cummings , 1987
 Buku Teks
Weaver, John E.
Plant ecology
McGraw-Hill, 1938
 Buku Teks