Setyawati, Irma, and Rizki Nurul Nugraha , translators. “Trends and Tourists Purchasing Interest at The Souvenir Center of The Ragunan Zoo Wildlife Park”. West Science Social and Humanities Studies , vol. 2, no. 04, Apr. 2024, pp. 692-9, https://doi.org/10.58812/wsshs.v2i04.851.