List of Articles بیع اقساطی Open Access Article Abstract Page Full-Text 1 - A Comparative Study of the Principles and Types of Installment Sale in Iran and the Vienna Convention 1980 Ebrahim Tagizade jalal soltan ahmadi Joseph EBRAHIMI Open Access Article Abstract Page Full-Text 2 - A Comparative Study of the Principles and Types of Installment Sale in Iran and Islam the Vienna Convention 1980 jalal soltanahmadi Joseph EBRAHIMI