Chandrakala H.K, and A. Rajeswari. “Complemented Semiring Satisfying the Identity U + 1 = 1 + U = U”. Innovative Solutions: A Systematic Approach Towards Sustainable Future, Edition 1 (February 10, 2025): 50–58. Accessed July 28, 2026. https://stm.bookpi.org/ISASATWF/article/view/17207.