DY, Diogenes C..
 Survey of Valuing Stock Options of Selected Publicly Listed Philippine Companies.
<strong>Philippine Management Review</strong>, [S.l.], v. 25, jan. 2019.
Available at: &lt;<a href="https://www.journals.upd.edu.ph/index.php/pmr/article/view/6581" target="_new">https://www.journals.upd.edu.ph/index.php/pmr/article/view/6581</a>&gt;. Date accessed: 21 sep. 2025.