Teklay, A. ., M. Haile, A. . Teferra, and E. J. Murray. “IMPROVED MATHEMATICAL MODELS FOR PARTICLE-SIZE DISTRIBUTION DATA REPRESENTATION OF TROPICAL WEATHERED RESIDUAL SOILS”. Zede Journal of Ethiopian Engineers and Architects, vol. 32, Feb. 2023, pp. 1-21, http://ejol.aau.edu.et/index.php/ZEDE/article/view/6474.