Kandarpa, Venkata Rama Srinivas. “Study on Commutative \(\Delta\)-Semigroups*: A Mathematical Approach”. Research Highlights in Mathematics and Computer Science Vol. 9 (April 22, 2023): 23–35. Accessed July 21, 2026. https://stm.bookpi.org/RHMCS-V9/article/view/10406.