Zelalem Tafa Tola. “Association of Phenotypic Distance With Heterosis for Grain Yield and Clustering of Maize (Zea Mays L.) Inbred Lines”. International Journal for Research in Applied Sciences and Biotechnology, vol. 8, no. 2, Mar. 2021, pp. 280-5, https://ijrasb.com/index.php/ijrasb/article/view/82.