فهرس المقالات Vasant Helavi المقاله 1 - 5-sulfosalicylic acid as an efficient organocatalyst for environmentally benign synthesis of 2-substituted benzimidazoles Chandrakant Bhenki Shrikrishna Karhale Vasant Helavi Iranian Journal of Catalysis , العدد 5 , السنة 6 , زمستان 2016
