K. CHINJU KRISHNA; C. DAVID RAJ; K. RUBIN MARY. Some standard results on even sum graphs. Malaya Journal of Matematik, India, v. 8, n. 04, p. 2282–2284, 2020. DOI: 10.26637/MJM0804/0164. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1899. Acesso em: 16 jul. 2024.