KIRANA, Anik; 						KHOLIFAH, Siti.
 Approach Higher Order Thinking-Problem Based Learning in Learning Mathematics Material Linear Equations Absolute Value One Variable.
<strong>INNOVATION RESEARCH JOURNAL</strong>, [S.l.], v. 1, n. 1, p. 20-28, feb. 2020.
ISSN 2721-6675.
Available at: &lt;<a href="https://journal.umg.ac.id/index.php/innovation/article/view/1188" target="_new">https://journal.umg.ac.id/index.php/innovation/article/view/1188</a>&gt;. Date accessed: 01 may 2024.
doi: <a href="http://dx.doi.org/10.30587/innovation.v1i1.1188">http://dx.doi.org/10.30587/innovation.v1i1.1188</a>.