Demir, Aynur. « Determination of the Recreational Value of Botanic Gardens. A Case Study Royal Botanic Gardens, Kew, London ». Revista de Cercetare si Interventie Sociala, vol. 44, mars 2014, p. 160-8, https://www.rcis.ro/journal/article/view/1435-determination-of-the-recreational-value-of-botanic-gardens.