出典:Phillip J. Greenwell, Lisa M. Riley, Ricardo Lemos de Figueiredo , James E. Brereton , Andrew Mooney and Paul E. Rose (2023). The Societal Value of the Modern Zoo: A Commentary on How Zoos Can Positively Impact on Human Populations Locally and Globally, Journal of Zoological and Botanical Gardens, 4(1):53-69 | doi:10.3390/jzbg4010006