List of Articles افشای اختیاری اطلاعات Open Access Article Abstract Page Full-Text 1 - The effect of voluntary disclosure of historical and forward-looking non-financial information on sustainability performance Gholamhossein Pourgholami Dafchahi Mahmood Samadi Largani Razieh Alikhani Mohammadreza Pourali Open Access Article Abstract Page Full-Text 2 - The effect of voluntary information disclosure on environmental costs fatemeh golzadeh mohammad reza Abbasi Astemal Open Access Article Abstract Page Full-Text 3 - تأثیر هیئت مدیره مشترک بر افشای اختیاری اطلاعات و کیفیت سود داریوش فروغی جمال علیدادی شمس آباد