- “sorption of inorganic acids in Polybenzimidazole (PBI) membrane” ; 6th Iranian seminar on Polymer science and technology (ISPST 2003), 12-15 May 2003, Tehran, Iran
- “transport of inorganic acids through Polybenzimidazole (PBI) membrane” ; 6th Iranian seminar on Polymer science and technology (ISPST 2003), 12-15 May 2003, Tehran, Iran