In this paper, we determine all harmonious graphs of order \(6\).
All graphs in this paper are finite, simple and undirected. We shall use the basic notation and terminology of graph theory as in [1].
Citation
M.A. Seoud, M.Z. Youssef. On Harmonious Graphs of Order \(6\)[J], Ars Combinatoria, Volume 065. 155-176. .