Y. PAUL, B. ABDULRAHMAN, I. KAZEEM, O. K. CHUKWUEBUKA, A. M. NYAKO, and F. G. MIJE, “A COMPARATIVE STUDY ON THE EFFECT OF SISAL FIBRE AND WASTE PLASTIC STRIPS IN STRUCTURAL STRENGTH IMPROVEMENT OF TROPICAL BLACK CLAY”, JESR, vol. 28, no. 2, pp. 81-91, Sep. 2022.