فهرست مقالات Vasant Helavi مقاله 1 - Acacia concinna pod catalyzed synthesis of 2-arylbenzothia/(oxa)zole derivatives Rahul Bhat Shrikrishna Karhale Satyanarayan Arde Vasant Helavi Iranian Journal of Catalysis , شماره 2 , سال 9 , بهار 2019