Volume 51 | Number 3 | Year 2017 | Article Id. IJMTT-V51P523 | DOI : https://doi.org/10.14445/22315373/IJMTT-V51P523
In EP cordial labeling first time the number -1 was also considered in images of labelling function.
[1] Bapat M.V. Some vertex prime graphs and a new type of graph labelling Vol 47 part 1 yr2017 pg 23-29 IJMTT.
[2] BapatMukundV. Ph.D.Thesis ,University of Mumbai 2004.
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[4] Jonh Clark, D. A. Holtan Graph theory by allied publisher and world scientist.
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MukundBapat, "Some EP-cordial Graphs," International Journal of Mathematics Trends and Technology (IJMTT), vol. 51, no. 3, pp. 177-181, 2017. Crossref, https://doi.org/10.14445/22315373/IJMTT-V51P523