A. A, M., Z. Y.G, and N. A.K. “Variation in Density and Shrinkage Between Sawmill and Hand Processed Khaya Senegalensis Woodin Sokoto, North-Western Nigeria”. International Journal of Sustainable Agricultural Research, vol. 2, no. 3, Sept. 2015, pp. 77-85, doi:10.18488/journal.70/2015.2.3/70.3.77.85.