List of Articles قرارداد. Open Access Article Abstract Page Full-Text 1 - The impact of unusual and unpredictable inflation in creating the right of termination for the contractor in projects based on the general terms of the contract Soheil Ravagh Ardebilii ahmad Yousefi Sadeghloo, Pejman Pirooz i Open Access Article Abstract Page Full-Text 2 - "The Doctrine of Frustration in the English and Iranian law" Omid Shabani Laya Baradaran Open Access Article Abstract Page Full-Text 3 - Forecasting the Condition of "Renegotiation" in Establishing the Economic Balance of Oil Contracts Lacking "Balance" and its Result in Restoring the lost Economic Balance Adham Haghgozar Ali Rostamifar Nejad Ali Almasi https://doi.org/10.30495/DPI.1403.1122896 Open Access Article Abstract Page Full-Text 4 - Comparative study of damage caused by non-fulfillment of obligations in Iran, Egypt and Islamic jurisprudence Taghi Shahavand Rahim Sayah روحالله مرادی Open Access Article Abstract Page Full-Text 5 - self-proclaimed (Jobs without contract) and job security teybah balvardi 10.30495/DPI.1403.1190819