LICUANAN, Wilfredo.
 Guest Editorial.
<strong>Science Diliman: A Journal of Pure and Applied Sciences</strong>, [S.l.], v. 19, n. 1, oct. 2007.
ISSN 2012-0818.
Available at: &lt;<a href="https://journals.upd.edu.ph/index.php/sciencediliman/article/view/3668" target="_new">https://journals.upd.edu.ph/index.php/sciencediliman/article/view/3668</a>&gt;. Date accessed: 02 sep. 2025.