Kartika, Khalisha Aura, et al. “Circular Energy Integration: Optimization of Refuse Derived Fuel Pellets and Residual Heat Recovery for Industrial Decarbonization ”. Journal of Innovation Materials, Energy, and Sustainable Engineering, vol. 3, no. 2, Jan. 2026, pp. 171-86, doi:10.61511/jimese.v3i2.2026.2618.