MADHUBALA.V; HEMAVATHY.G; GAYATHRI.M. PID Parameters Optimization for Spherical Tank Process. International Journal of Advance Research in Engineering, Science & Technology, [S. l.], v. 2, n. 2, p. 27–29, 2015. Disponível em: https://ijarest.org/index.php/ijarest/article/view/13. Acesso em: 6 sep. 2025.