AdamuI. M., KauraJ. M., LawanA. and OcholiA. (2023) “REINFORCED CONCRETE BEAM AT ULTIMATE LIMIT STATE CONSIDERING VARIABILITY IN THE CONCRETE MIX DESIGN PARAMETERS”, FUDMA JOURNAL OF SCIENCES, 7(1), pp. 136 - 147. doi: 10.33003/fjs-2023-0701-1265.