1. 1. P. Basu,“ Biomass gasification and pyrolysis practical design”.
   2. J. J. Ramirez, J. D. Martinez and S. L. Petro “Basic design of a fluidized bed gasifier for ricehusk on a pilot scale”. Latin American Applied Research, vol. 37, pp. 299-306, 2007.
   3. P. Basu, “Combustion and Gasification in fluidized beds”.Taylor and Francis. [4] M. P. G. Vázquez, R. García, M.V. Gil, C. Pevida and F. Rubiera,“Comparison of the gasification performance of multiple biomass types in a bubbling fluidized bed”. Energy Conversion and Management, vol. 176, pp. 309–323, 2018.
   4. T. M. Ismail, M. A. Salam , E. Monteiro and A. Rouboa, “Fluid dynamics model on fluidized bed gasifier using agro-industrial biomass as fuel”. Waste Management, 2017
   5. J. H. Kuo, C. L. Lin , T. J. Chang, W. C. Weng and J. Y. Liu, “Impact of using calcium oxide as a bed material on hydrogen production in two-stage fluidized bed gasification”. International journal o f hydrogen energy, 2016
   6.  C. L. Lin, M. H. Wu and W. C. Weng, “Effect of the type of bed material in two-stage fluidized bed gasification reactors on hydrogen gas synthesis and heavy metal distribution”. International journal of hydrogen energy, 2018.
   7.  J. Karla and T. Prollb, “Steam gasification of biomass in dual fluidized bed gasifiers: A review. Renewable and Sustainable Energy Reviews, vol. 98, pp. 64–78, 2018
   8. W. Song, G. Song, X. Qi and Q. Lu, “Transformation characteristics of sodium in Zhundong coal under circulating fluidized bed gasification”. Fuel, vol. 182, pp. 660–667, 2016.
   9.  J. Corella, J. M. Toledo and G. Molina, “Biomass gasification with pure steam in fluidised bed: 12 variables that affect the effectiveness of the biomass gasifier”. Int. J. Oil, Gas and Coal Technology, Vol. 1, pp. 1/2, 2008.