WALUYO, Tri, 		DIGDOWISEISO, Kumba, 		PUTERA, El Amry, AND 		SUGIYANTO, Eko.
" The Costs of Reduction Emission from Deforestation and Forest Degradation. Concepts and Issues" <em>Journal of Environmental Management and Tourism</em> [Online], Volume 10 Number 1 (7 May 2019)