Haile, Dawit, Fassil Kebede, Bobe Bedadi, and Lemma Wogi. “Geostatistical Assessment of the Spatial Variability of Acid Soils Properties in the Southeastern Highlands, Arsi Zone, Ethiopia”. International Journal of Plant & Soil Science 26, no. 2 (January 24, 2019): 1-11. Accessed October 1, 2020. https://journalijpss.com/index.php/IJPSS/article/view/29868.