WETWITAYAKLUNG, Penpun; 						PHAECHAMUD, Thawatchai; 						KEOKITICHAI, Sindhchai.
 The Antioxidant Activity of Caesalpinia sappan L. Heartwood.
<strong>Naresuan University Journal: Science and Technology (NUJST)</strong>, [S.l.], v. 13, n. 2, p. 43-52, aug. 2013.
ISSN 2539-553X.
Available at: &lt;<a href="https://www.journal.nu.ac.th/NUJST/article/view/215" target="_new">https://www.journal.nu.ac.th/NUJST/article/view/215</a>&gt;. Date accessed: 08 feb. 2026.