Lubis, Muhammad. 2017. “Implementation of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and Law No. 5 of 1990 in Law Enforcement Efforts and Guarantees of Environmental Rights in Gunung Leuser National Park, Indonesia”. Journal of Indonesian Legal Studies 2 (1), 55-78. https://doi.org/10.15294/jils.v2i01.16635.