List of Articles Pledge Open Access Article Abstract Page Full-Text 1 - Mortgage Commercial Documents in Iranian Law Ramin Pour Saeed Zahra Davoudi Open Access Article Abstract Page Full-Text 2 - Relation Definition between Lottery and Gambling in Iranian law and Islamic Jurisprudence Meysam Nazari Oloum Mohammad Hossein Esfandiarpour Open Access Article Abstract Page Full-Text 3 - The Effect of Changes of Main Obligations in Subordinated Obligations of the Contract nasrollah jafari pegah sarmadi Open Access Article Abstract Page Full-Text 4 - The role of official documents in invoice-related contracts Maryam Ibn Turab Open Access Article Abstract Page Full-Text 5 - The Liability of the Guarantor Regarding the Damage of Payment Delay in case of Bankruptcy of the Main Obligor karim noormohamadi Reza Partovizade Benam