ULLYATT, A. G. A tentative suggestion on a possible origin of the three-dot technique. English Usage in Southern Africa, [S. l.], v. 6, n. 1, p. 38–40, 1975. Disponível em: https://unisapressjournals.co.za/index.php/EUSA/article/view/5503. Acesso em: 22 jul. 2024.