ABDULLAH, Adil A.; 						ABDUL RAHMAN, Mohammed S..
 Comparison Between Local Manufactured Panel Ridge and Conventional Disc Ridge Throughout Investigating Their Effects on Power-Use-Efficiency, Draft Force and Actual Field Productivity.
<strong>Tikrit Journal for Agricultural Sciences مجلة تكريت للعلوم الزراعية</strong>, [S.l.], v. 19, n. 1, p. 126-141, apr. 2019.
ISSN 2664-0597.
Available at: &lt;<a href="http://tujas.tu.edu.iq/index.php/ph/article/view/360" target="_new">http://tujas.tu.edu.iq/index.php/ph/article/view/360</a>&gt;. Date accessed: 14 aug. 2021.
doi: <a href="http://dx.doi.org/10.25130/tjas.v19i1.360">http://dx.doi.org/10.25130/tjas.v19i1.360</a>.