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