Links
[1] http://www.agric.wa.gov.au/iaquarantine/
[2] http://www.slp.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=Magnoliophyta
[6] https://www.agric.wa.gov.au/organisms?search_string=Magnoliopsida
[7] https://www.agric.wa.gov.au/organisms?search_string=Caryophyllales
[8] https://www.agric.wa.gov.au/organisms?search_string=Cactaceae
[9] https://www.agric.wa.gov.au/organisms?search_string=Opuntia
[10] https://www.agric.wa.gov.au/organisms?search_string=engelmannii
[11] https://www.agric.wa.gov.au/n/891
[12] https://www.agric.wa.gov.au/organisms?amp%3Bamp%3Bregion=127%2C68&amp%3Bregion=70&classification=6&keep=RESTRICTED&order-by=asc&per-page=20&rank=species&region=141%2C96%2C21%2C112%2C54%2C97&search_string=%2A&sort-by=taxon
[13] https://www.agric.wa.gov.au/biosecurity-biosecurity-quarantinebiosecurity-governance