List of Articles Saeid khodabakhshi Article 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 , Issue 2 , Year , Spring 2013 Article 2 - Modified Biginelli condensation by molybdate sulfuric acid as a powerful and reusable catalyst Aigin Bashti Bahador Karami Saeed Khodabakhshi Iranian Journal of Catalysis , Issue 5 , Year , Autumn 2014