https://biharboardbooks.com/class-xi-economics-%e0%a4%ad%e0%a4%be%e0%a4%b0%e0%a4%a4%e0%a5%80%e0%a4%af-%e0%a4%85%e0%a4%b0%e0%a5%8d%e0%a4%a5%e0%a4%b5%e0%a5%8d%e0%a4%af%e0%a4%b5%e0%a4%b8%e0%a5%8d%e0%a4%a5%e0%a4%be-%e0%a4%95/
Bihar Board 11th Economics Book 2023 PDF Download