HERNANDEZ JR., Manuel V.; 						SI, Willie C..
 A New Method for the Kinematic Analysis of Planar Four-Bar Mechanisms.
<strong>Philippine Engineering Journal</strong>, [S.l.], v. 6, n. 1, oct. 2021.
ISSN 2718-9287.
Available at: &lt;<a href="https://www.journals.upd.edu.ph/index.php/pej/article/view/8285" target="_new">https://www.journals.upd.edu.ph/index.php/pej/article/view/8285</a>&gt;. Date accessed: 17 sep. 2025.