1. Pang Y, Shen S, Chen Y (2017) High temperature steam gasification of corn straw pellets in downdraft gasifier: preparation of hydrogen-rich gas. Waste Biomass Valorization 10(7):127
2. Musabbikhah M, Saptoadi H, Subarmono S, Arif Wibisono M (2015) Modelling and optimisation of coconut shell drying and carbonisation using multi-response taguchi method with multi-response signal-to-noise procdure. Int J Eng Trans C: Asp 28(3):464–472
3. Bidabadi M, Noroozi MJ (2015) Effect of heat recirculation in biomass flame stability within a cylindrical micro-combustor (technical note). Int J Eng Trans C: Asp 28(3):454–459
4. Manaf LA, Samah MAA, Zukki NIM (2009) Municipal solid waste management in Malaysia: practices and challenges. Waste Manag 29(11):2902–2906
5. Muyibi SA, Ambali AR, Eissa GS (2007) The impact of economic development on water pollution: trends and policy actions in Malaysia. Water Resour Manag 22:485–508