Karang, G. Y., I. G. A. Wisnu Wardhana, and M. Angamuthu. “ENERGY OF NON-COPRIME GRAPH ON MODULO GROUP”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 19, no. 4, Sept. 2025, pp. 2937-52, doi:10.30598/barekengvol19iss4pp2937-2952.