Yohannes Gebremichael, Kebede Woldetsadik, Arvind Chavhan, and Fikreyohannes Gedamu. 2017. “Effect of Integrated Nutrient Management on Growth and Bulb Yield of Onion (Allium Cepa L.) under Irrigation at Selekleka, Northern Ethiopia”. International Journal of Life Sciences 5 (2). India:151-60. https://ijlsci.in/ls/index.php/home/article/view/1377.