Isaac, A.A. et al. 2025. ON WHETHER A t- STEINER QUINTUPLE SYSTEM OF BALANCED INCOMPLETE BLOCK DESIGN IS A GROUP, RING OR FIELD ALGEBRA. FUDMA JOURNAL OF SCIENCES. 9, 12 (Nov. 2025), 241–246. DOI:https://doi.org/10.33003/fjs-2025-0912-4082.