DE VERA, Joan S.; 						QUIRIT, Leni B.; 						RODRIGUEZ, Irene B..
 Determination of Cr, Cd, Sn, and Pb in Selected Herbal Products Available in Philippine Markets.
<strong>Science Diliman: A Journal of Pure and Applied Sciences</strong>, [S.l.], v. 29, n. 2, nov. 2017.
ISSN 2012-0818.
Available at: &lt;<a href="https://journals.upd.edu.ph/index.php/sciencediliman/article/view/5829" target="_new">https://journals.upd.edu.ph/index.php/sciencediliman/article/view/5829</a>&gt;. Date accessed: 03 sep. 2025.