Susanth, C., Sunny Joseph Kalayathankal, and N. K. Sudev. “A Note on McPherson Number of Graphs”. Journal of Informatics and Mathematical Sciences 8, no. 2 (May 24, 2016): 123–127. Accessed June 20, 2025. http://www.journals.rgnpublications.com/index.php/jims/article/view/409.