Save Billions of Dollars !! (Change Herfindahl Hirschman Index to Haryadi Index) September 21, 2020 Sigit Haryadi Leave a comment Ask for help to add your language subtitles to my Youtube ChannelSave Billions of Dollars !! (Change Herfindahl Hirschman Index to Haryadi Index) = Selamatkan TRILIUNANAN RUPIAH!! (Ganti Herfindahl Hirschman Index menjadi Haryadi Index)