Tefera, Yigezu Tesfaye, and Muktar Beniam Yaziz. “Determination of Optimal Soil Moisture Depletion Level for Cardamom (Elletaria Cardamomum)”. Engineering And Technology Journal, vol. 3, no. 12, Dec. 2018, pp. 506-10, doi:10.31142/etj/v3i12.01.