Syuhada, A. and Ameen, M. and Sher, F. and Azizan, M.T. and Yusoff, M.H.M. and Ruslan, M.S.H. and Aqsha, A. (2021) Effect of calcium doping using aqueous phase reforming of glycerol over sonochemically synthesized nickel-based supported ZrO2 catalyst. Catalysts, 11 (8). ISSN 20734344