HANOON, W. H.; NASER, R. H. Numerical Solution of Double Integral of Singular Derivatives Using Trapezoidal Method with Romberg Acceleration. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 9, n. 9, p. 3048–3054, 2015. DOI: 10.24297/jam.v9i9.2235. Disponível em: https://rajpub.com/index.php/jam/article/view/9-9-2235. Acesso em: 1 may. 2024.