Interesting Books used as resources:

Pendergast Chuck, 1972, Introduction to organic gardening, Paperback Library New York.

Morrow Rosemary, 1994, Earth user’s Guide to Permaculture, Kangaroo Press Pty Ltd.

Holmgren David, 2002, Permaculture Principles and Pathways Beyond Sustainability, Holmgren Design services.

Duke Geoff, Thornton Trevor, Lang Josephine, Donaldson Paul, 2001, Issues of Sustainability, Victorian Association for Environmental Education Inc.

Birkett Lisa, Thorp Veronica, Van Gameren Marion, 2001, Monitoring Ecosystems, Victorian Association for Environmental Education Inc.