EISSA, R. P.; GAD, M. M. CUBIC MECHANICAL METHOD FOR THE NONLINEAR SYSTEM OF SINGULAR INTEGRAL EQUATIONS. Tamkang Journal of Mathematics, [S. l.], v. 21, n. 3, p. 201–209, 1990. DOI: 10.5556/j.tkjm.21.1990.4659. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4659. Acesso em: 18 aug. 2022.