Rizki, Muhammad, Octojaya Abriyoso, Eka Kurnia Saputra, Samsiyah Samsiyah, Lia Putri, and Tati Tati. 2022. “Tourist Kelong Bintan Black Coral Business Strategy During COVID-19 Pandemic”. Jurnal Mantik 6 (3):2971-78. https://iocscience.org/ejournal/index.php/mantik/article/view/3016.