K. PONNAMMAL; R. SAYEELAKSHMI. Numerical solution of generalised Pantograph equation using natural continuous extension fourth order Runge-Kutta method. Malaya Journal of Matematik, India, v. 7, n. 03, p. 545–549, 2019. DOI: 10.26637/MJM0703/0029. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/750. Acesso em: 24 nov. 2024.