M. R. Gayatri, R. Fadhilah, S. T. Lestari, L. F. Pratiwi, A. Abdurahim, and I. G. A. W. Wardhana, “TOPOLOGY INDEX OF THE COPRIME GRAPH FOR DIHEDRAL GROUP OF PRIME POWER ORDER”, JD, vol. 5, no. 2, pp. 126-134, Oct. 2023.