Stephen Platt. "Wildlife needs natural tree hollows". Department of Primary Industries. Archived from the original on 2007-05-19. Retrieved 2007-06-19. Includes a list of Victorian hollow-using animals.
dse.vic.gov.au
Nicholls, Felicity (July–August 2002). "Bat Tubes"(PDF). Land for Wildlife News, NRE. 5 (2): 5. Archived from the original(PDF) on 2007-09-26. Retrieved 2007-06-24., Vol. 5, No. 2, July/August 2002
Stephen Platt. "Wildlife needs natural tree hollows". Department of Primary Industries. Archived from the original on 2007-05-19. Retrieved 2007-06-19. Includes a list of Victorian hollow-using animals.
Nicholls, Felicity (July–August 2002). "Bat Tubes"(PDF). Land for Wildlife News, NRE. 5 (2): 5. Archived from the original(PDF) on 2007-09-26. Retrieved 2007-06-24., Vol. 5, No. 2, July/August 2002