Links
[1] http://www.agric.wa.gov.au/iaquarantine/
[2] http://www.legislation.wa.gov.au/legislation/statutes.nsf/main_mrtitle_2735_homepage.html
[3] https://www.agric.wa.gov.au/form/biosecurity-contact-details
[4] https://www.agric.wa.gov.au/organisms?search_string=%2A&classification=6
[5] https://www.agric.wa.gov.au/organisms?search_string=Pteridophyta
[6] https://www.agric.wa.gov.au/organisms?search_string=Filicopsida
[7] https://www.agric.wa.gov.au/organisms?search_string=Polypodiales
[8] https://www.agric.wa.gov.au/organisms?search_string=Thelypteridaceae
[9] https://www.agric.wa.gov.au/organisms?search_string=Christella
[10] https://www.agric.wa.gov.au/organisms?search_string=arida
[11] https://www.agric.wa.gov.au/organisms?search_string=arida&per-page=20&sort-by=taxon&order-by=asc
[12] https://www.agric.wa.gov.au/biosecurity-biosecurity-quarantinebiosecurity-governance