IBRAHIM, Rose Irnawaty. Expanding an Abridged Life Table Using the Heligman-Pollard Model. MATEMATIKA, [S. l.], v. 24, p. 1–10, 2008. DOI: 10.11113/matematika.v24.n.227. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/227. Acesso em: 5 may. 2024.