Ramos, H., & 		Reyes, E.
(2021).
 Outdoor Test Facility for Solar Flat-Plate Collectors.
<em>Philippine Engineering Journal, 5</em>(2).
Retrieved from <a href="https://www.journals.upd.edu.ph/index.php/pej/article/view/8314" target="_new">https://www.journals.upd.edu.ph/index.php/pej/article/view/8314</a>