Ilham, Y. 2021. Valuasi Ekonomi Destinasi Wisata Pulau Harapan, Taman Nasional Kepulauan Seribu, DKI Jakarta. IJEEM - Indonesian Journal of Environmental Education and Management. 6, 1 (Feb. 2021), 32 - 50. DOI:https://doi.org/10.21009/IJEEM.061.03.