اختتامیه پنجمین کنفرانس نقش جوانان در توسعه پایدار شهری

the closing ceremony of the 5th Discourse on the Role of Youth in Sustainable Urban Development

the closing ceremony of the 5th Discourse on the Role of Youth in Sustainable Urban Developmentthe closing ceremony of the 5th Discourse on the Role of Youth in Sustainable Urban Development