farhan mohd nor, ibrahim abdullah and rizafizah othaman.  (2013).  gas permeability of enr/pvc membrane with the addition of inorganic fillers.  - aip conference proceedings -ukm fst postgraduate colloquium.  . 

siti norfatihah fauzee and rizafizah othaman.  (2013).  extraction and dissolution of cellulose from nypa fruit husk for nanofibers fabrication.  - aip conference proceedings -ukm fst postgraduate colloquium.  . 

rizafizah othaman, khairiah haji badri, sharina abu hanifah, zuriati zakaria, yang farina abdul aziz, rusli daik.  (2012).  chemistry outreach program and its impact on secondary school students.  - procedia social and behavioral sciences - ukm teaching and learning congress 2011.  .