Rupiasih, N.
(2022).
 Cover.
<em>BULETIN FISIKA, 24</em>(1).
Retrieved from <a href="http://103.29.196.112/index.php/buletinfisika/article/view/98604" target="_new">http://103.29.196.112/index.php/buletinfisika/article/view/98604</a>