Mohd, T. A. T., Abu Bakar, N. F., Awang, N. and Talib, A. A. (2018) “Aqueous foams stabilized with silica nanoparticle and alpha olefin sulfonates surfactant”, Journal of Mechanical Engineering and Sciences, 12(3), pp. 3759 - 3770. doi: 10.15282/jmes.12.3.2018.1.0332.