KHALEEL, Asim.
 The Effect Of  PQ4R Strategy On The Achievement Of First – Year – Intermediate Stage Students Achievement In Mathematics And Developing Their Science Process Skills.
<strong>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</strong>, [S.l.], v. 26, n. 11, p. 510-485, dec. 2019.
ISSN 1817-6798. Available at: &lt;<a href="https://jtuh.tu.edu.iq/index.php/hum/article/view/882" target="_new">https://jtuh.tu.edu.iq/index.php/hum/article/view/882</a>&gt;. Date accessed: 10 may 2024.
doi: <a href="http://dx.doi.org/10.25130/hum.v26i11.882">http://dx.doi.org/10.25130/hum.v26i11.882</a>.