AHMAD, maki mohammed et al.
 Impact of clipping dates and nitrogen application on yield and yield components of two six-rowed barley at two location of Sulaimani District.
<strong>Journal of Kerbala for Agricultural Sciences</strong>, [S.l.], v. 5, n. 4, p. 7-23, dec. 2018.
ISSN 2616-6933.
Available at: &lt;<a href="https://journals.uokerbala.edu.iq/index.php/Agriculture/article/view/344" target="_new">https://journals.uokerbala.edu.iq/index.php/Agriculture/article/view/344</a>&gt;. Date accessed: 24 nov. 2019.