WAFA, M.H. ABOU-EL-, R.M. AWADALLAH, and M.N. RASHED. 1995. “?MAJOR AND TRACE ELEMENTS IN MILLET AND SOILS OF THREE DIFFERENT EXPERIMENTAL FARMS”. Biological Sciences - PJSIR 38 (11-12):414-19. https://v2.pjsir.org/index.php/biological-sciences/article/view/2536.