Haileselassie, B.; Weldegebreil, Y.; Kidanu, S. Status of Tissue Zinc and Iron Contents of Teff [(Eragrostis Tef (Zucc.) Trotter] and Bread Wheat (Tritcum Aestivum) and Their Relationships With Some Soil Parameters in Tigray Region, Northern Ethiopia. EJAST 2018, 9, 12-21.