<citation>
<author-group>
<name>
<surname>Shalwar</surname>
<given-names>PK</given-names>
</name>
<name>
<surname>Gupta</surname>
<given-names>B</given-names>
</name>
<name>
<surname>Singh</surname>
<given-names>P</given-names>
</name>
</author-group>
<year>2023</year>
<article-title>Solar Photovoltaic System: A Techno-economic Review</article-title>
<source>NanoWorld J</source>
<volume>9</volume>
<issue>S1</issue>
<fpage>S408</fpage>
<lpage>S413</lpage>
</citation>