Some early twentieth-century scholars, such as Louis de La Vallée-Poussin, Arthur Berriedale Keith and Caroline Rhys Davids, have been criticized by Sri Lankan scholars for not distinguishing the two sufficiently.
Beberapa cendekiawan awal abad ke-20, seperti Louis de La Vallée-Poussin, Arthur Berriedale Keith dan Caroline Rhys Davids, dikritik oleh para cendekiawan dari Sri Lanka karena tak membedakan dengan jelas dua hal tersebut.