فهرس المقالات Reduce economic costs حرية الوصول المقاله صفحة الملخص نص كامل 1 - Distribution Network Development Planning in the Presence of Distributed Generation Resources by Lightning Search Algorithm پیام رکنی نخی Salman Amirkhan shahab khormali Mohammad Salehimaleh javad safaei kuchaksaraei Siamak Naderi