https://www.newsbuyback.com/2020/11/average-revenue-per-user-arpu%e0%a4%95%e0%a5%8d%e0%a4%af%e0%a4%be-%e0%a4%b9%e0%a5%88-%e0%a4%9c%e0%a5%8b-mobile-bill-%e0%a4%94%e0%a4%b0-internet-pack-%e0%a4%95%e0%a5%87-rate-%e0%a4%aa%e0%a4%b0-effec/