Risna, Rosniati A, and Anggun R Gumilang. “An Overview of Environmental Education for Millennial Visitors in Indonesian Botanic Gardens”. Berkala Penelitian Hayati 24, no. 2 (June 26, 2019): 101-106. Accessed August 22, 2026. https://www.berkalahayati.org/index.php/jurnal/article/view/26.