Chan, Y.H. and Yusup, S. and Quitai, A.T. and Tan, R.R. and Uemura, Y. and Sasaki, M. and Lam, H.L.  (2015) Studies on effect of process parameters variation on bio-oil yield in subcritical and supercritical hydrothermal liquefaction of malaysian oil palm biomass.     Springer International Publishing, pp. 225-245.  ISBN 9783319179155; 9783319179148