K. V. R. SRINIVAS; T. Santi SRI. Equivalent Identities on Semirings. Characterisation of Semigroups and Rings, [S. l.], p. 15–22, 2023. DOI: 10.9734/bpi/mono/978-81-19491-82-7/CH3. Disponível em: https://stm.bookpi.org/CSR/article/view/11645. Acesso em: 18 jun. 2026.