YUNIARA, Ridha.
 Students’ mathematical communication skills in finding the concept of direct and inverse proportions through discovery learning.
<strong>Proceedings of English Education International Conference</strong>, [S.l.], v. 1, n. 2, p. 375-379, nov. 2016.
ISSN 2527-8037. Available at: &lt;<a href="http://eeic.unsyiah.ac.id/proceedings/index.php/eeic/article/view/74" target="_new">http://eeic.unsyiah.ac.id/proceedings/index.php/eeic/article/view/74</a>&gt;. Date accessed: 28 mar. 2023.