Polyvinylidene fluoride membrane via vapour induced phase separation for oil/water emulsion filtration by Mat Nawi, Normi Izati, Sait, Nur Rifqah, Bilad, Muhammad Roil, Shamsuddin, Norazanita, Jaafar, Juhana, Nordin, Nik Abdul Hadi, Narkkun, Thanitporn, Faungnawakij, Kajornsak, Mohshim, Dzeti Farhah