مجموعة البيانات المجموعات جدول النشاط المتتابع المجموعات El Salvador UNESCO member since 1948 عرض El Salvador Groundwater Sustainability and Water Cooperation (GSW) Datasets uploaded by the Groundwater... عرض Groundwater Sustainability and Water Cooperation (GSW) Guatemala UNESCO member since 1950 عرض Guatemala Honduras UNESCO member since 1947 عرض Honduras
