H. Mukhtar and  N. M. Noor and  R. Nasir and  D. F. Mohshim,  Pore Model Prediction of CH4 Separation from HS Using PTMSP and γ -Alumina Membranes.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2012, vol. 70(10). 901 - 905
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/5524.