Abdulaali, H. S., I. M. S. Usman, J. E. Basung, M. J. Abdulhasan, and M. S. Hameed. “Conceptual Design of Ecotourism Products Proposal at Mangrove Forest in Ketam Island, Malaysia”. International Journal of Global Optimization and Its Application, vol. 1, no. 2, June 2022, pp. 111-9, doi:10.56225/ijgoia.v1i2.20.