Maššinan wi ilanen daɣ Big Four?
Big Four ehay Deloitte, PricewaterhouseCoopers (PwC), Ernst and Young (EY) d KPMG "Big Four" amosan tagayen ti maqqornen n accounting daɣ alɣalim s riba Daɣ asiwad n alxidmaten tin audit, taggayen tin hak id alxidmaten tin taxxa, tikarsay d alxidmaten tiyyad n tanmerdut