Abu Mohamed ALHASAN. Study on Graph Entropy Associated with Multilevel Atomic Excitation. New Ideas Concerning Science and Technology Vol. 8, [S. l.], p. 33–42, 2021. DOI: 10.9734/bpi/nicst/v8/6541D. Disponível em: https://stm.bookpi.org/NICST-V8/article/view/405. Acesso em: 12 jun. 2026.