فهرس المقالات گیاهان دارویی و زینتی حرية الوصول المقاله صفحة الملخص نص كامل 1 - Strategies of gaining competitive advantage based on focusing on customers and market strategy for Extension and Development of medicinal and ornamental plants Enterprises in Ilam province homayoon moradnezhadi mohamad jasemi hossein mahdizade