Farhadi, Asadollah, Takassi, Mohammad Ali, Enjilzadeh, Marzieh, Davod, Fereshteh (2018) ‘Synthesis of Some Biginelli-type Products: Nano Alumina Sulfonic acid (NASA) Catalyzed under Solvent-free Condition’, Journal of Applied Chemical Research, 12(1), pp. 48-57. doi: