V. Balaji, D. S. T. Ramesh and M. Elakkiya (2016) “On Relaxed Skolem Mean Labling For Four Star”, International Journal of Mathematics And its Applications, 4(1 - C), pp. 17–22. Available at: http://ijmaa.in/index.php/ijmaa/article/view/588 (Accessed: 17 May 2024).