T. LAVANYA; D. AMSAVENI. Spherical fuzzy graph. Malaya Journal of Matematik, India, v. 8, n. 04, p. 1966–1969, 2020. DOI: 10.26637/MJM0804/0107. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1811. Acesso em: 16 jul. 2024.