TURAYEV, J.; ORTIGALIYEVA, G. IMPORTANT TECHNIQUES TO SOLVE FUNCTIONAL EQUATIONS. RESEARCH AND EDUCATION, [S. l.], v. 1, n. 4, p. 34–37, 2022. Disponível em: https://researchedu.org/index.php/re/article/view/520. Acesso em: 19 sep. 2024.