J. AMALORPAVA JERLINE; K. DHANALAKSHMI; L. BENEDICT MICHAEL RAJ. Harmonic Index of Bridge and Chain Graphs. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 1 - C, p. 275–284, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/775. Acesso em: 19 may. 2024.