อุปดิสสกุล ส. Computation of Coefficients for Orthogonal Polynomial. Agriculture and Natural Resources, Bangkok, Thailand, v. 15, n. 1, p. 55–63, 1981. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/240850. Acesso em: 18 sep. 2026.