فهرس المقالات Hassan Zare المقاله 1 - Nano-silica supported ethane-sulfonic acid: An efficient heterogeneous solid acid catalyst for one-pot synthesis of xanthene and acridine derivatives Zohreh Loghemani Jahromi Hassan Zare Iranian Journal of Catalysis , العدد 4 , السنة 7 , تابستان 2017