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 April 28, 2024. http://www.rgnpublications.com/journals/index.php/jims/article/view/409.