Ather, Abdul Qayuum; Chaudhry, Faryal; Khan, Muhammad Naeem; Bueno, Eliana Aparecida Silicz; Khan, Misbahul Ain; Aslam, Noreen; Khan, Khalid M.; Athar, Muhammad Makshoof; Munawar, Munawar Ali; Ashraf, Muhammad; Ejaz, Syeda Abida Asian Journal of Chemistry, 2013 , vol. 25, # 14 p. 7743 - 7748