Budiarto Heru, M. N. Matondang, and Yossa. “A Correlation Between Environmental Knowledge and High School Student Coral Reefs Concervation’s Concern at Kepulauan Seribu”. Biosfer: Jurnal Pendidikan Biologi 8, no. 2 (January 17, 2018): 9–13. Accessed November 22, 2024. https://journal.unj.ac.id/unj/index.php/biosfer/article/view/5584.