TY - JOUR T1 - opec, test of independence T2 - اقتصاد انرژی JF - اقتصاد انرژی Y1 - 1379/// LA - fa UR - https://www.noormags.ir/view/fa/articlepage/103435 SP - 117 EP - 119 SN - VL - 11-12 IS - 5 ID - 103435 ER -