Danao, R.
(2021).
 Visual Tracking of Artificial Satellites at the University of the Philippines.
<em>Philippine Engineering Journal, 31</em>(2).
Retrieved from <a href="https://www.journals.upd.edu.ph/index.php/pej/article/view/7956" target="_new">https://www.journals.upd.edu.ph/index.php/pej/article/view/7956</a>