Zeppel, Heather, and Muloin, Sue (2008) Aboriginal interpretation in Australian wildlife tourism. Journal of Ecotourism, 7 (2). pp. 116-136.

Zeppel, Heather, and Muloin, Sue (2008) Conservation benefits of interpretation on marine wildlife tours. Human Dimensions of Wildlife, 13 (4). pp. 280-294.

Zeppel, Heather, and Muloin, Sue (2008) Conservation and education benefits of interpretation on marine wildlife tours. Tourism in Marine Environments, 5 (2-3). pp. 215-227.

Zeppel, Heather, and Muloin, Sue (2008) Indigenous wildlife interpretation at Australian zoos and wildlife parks. Tourism Review International, 11 (3). pp. 265-277.

Zeppel, H., and Muloin, S. (2008) Marine wildlife tours: benefits for participants. In: Higham, James, and Luck, Michael, (eds.) Marine Wildlife and Tourism Management. CABI, Wallingford, Oxfordshire, UK, pp. 19-48.

Zeppel, Heather, and Muloin, Sue (2007) Marine wildlife tourism: education and conservation benefits. In: Proceedings of the 5th International Coastal and Marine Tourism Congress. pp. 430-446. From: 5th International Coastal and Marine Tourism Congress: Balancing Marine Tourism, Development and Sustainability, 11-15 SEP 2007, Auckland, New Zealand.

Zeppel, Heather, and Muloin, Sue (2005) Indigenous interpretation of Australian wildlife: cultural values in tourism operations. In: Proceedings of the Council for Australian University Tourism and Hospitality Education Conference. pp. 1-17. From: CAUTHE 2005: Sharing Tourism Knowledge, 1 - 5 February 2005, Alice Springs, NT, Australia.

Zeppel, Heather D., Muloin, Sue T., and Higginbottom, Karen (2003) Kangaroo or gangurru? Indigenous wildlife interpretation in Australia. In: Black , Rosemary, and Weiler, Betty, (eds.) Interpreting the Land Down Under: Australian heritage interpretation and tour guiding. Environmental Communication Series . Fulcrum Publishing, Golden, CO, USA, pp. 165-185.