Kfle, Goitom, Tesfamichael Haile, Mussie Sium, Semere Debretsion, Henok Abrham, Martha Ghirmay, Helen Tsegay, and Filimon Nega. “Analysis of the Mineral Content of Wood Ashes of Selected Plants Used for Soil Amendments in Eritrea”. International Journal of Plant & Soil Science 25, no. 6 (December 24, 2018): 1-12. Accessed April 19, 2021. https://journalijpss.com/index.php/IJPSS/article/view/26547.