HAN, Shengen. Methods for Solving Indefinite and Definite Integrals Involving Trigonometric Functions. Journal of Innovation and Development, [S. l.], v. 14, n. 3, p. 582–587, 2026. DOI: 10.54097/qffz1605. Disponível em: https://drpress.org/ojs/index.php/jid/article/view/33833. Acesso em: 2 may. 2026.