فهرس المقالات Saeid khodabakhshi المقاله 1 - Silica gel: A very cheap, reusable, and efficient catalyst for green preparation of some bis-4-hydroxycoumarin on water Saeed Khodabakhshi Mojtaba Baghernejad Iranian Journal of Catalysis , العدد 2 , السنة 3 , بهار 2013 المقاله 2 - Modified Biginelli condensation by molybdate sulfuric acid as a powerful and reusable catalyst Aigin Bashti Bahador Karami Saeed Khodabakhshi Iranian Journal of Catalysis , العدد 5 , السنة 4 , پاییز 2014