Abdullah, Ahmad, AND 		Abdul Karim, Afrah Abdul Karim.
" Evaluation of F1S’ , F2S’ Hybrids , Heterosis , and Inbreeding Depression of Maize (Zea mays L.)" <em>Tikrit Journal for Agricultural Sciences مجلة تكريت للعلوم الزراعية</em> [Online], Volume 19 Number 1 (7 April 2019)