G. INDULAL; A.VIJAYAKUMAR. Reciprocal graphs. Malaya Journal of Matematik, India, v. 4, n. 03, p. 380–387, 2016. DOI: 10.26637/mjm403/005. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/546. Acesso em: 9 apr. 2025.