TWAIJ, S. D. Effects of Different Levels of Urea and Superphosphate Fertilizer in Some Growth Characters and the Yield of Fenugreek plant. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 23, n. 2, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1035. Acesso em: 31 mar. 2025.