EFFENDI, I., NURSYIRWANI, N., PANJAITAN, W., YOSWATY, D., GHALIB, M., RAZMAN, M., & ANDRIZAL, A. (2021). Potency and Development Strategy of Sungai Bersejarah Mangrove Ecotourism, Siak Regency. Journal Of Environmental Management And Tourism, 12(8), 2272 - 2282. Retrieved from https://journals.aserspublishing.eu/jemt/article/view/6670