The Impact of the Situation of Daylam and the Alvids of Ṭabaristān on the Rise of the Buyids with an Emphasis on Economic Backgrounds Journal title: تاریخ و فرهنگ Authors: ‘Alī YāḥYā’ī, Alī Akbar KajbāF, FraydūN AllāHyāRī Subject(s):