Wetwitayaklung, Penpun, 		Phaechamud, Thawatchai, 		Limmatvapirat, Chutima, AND 		Keokitichai, Sindhchai.
" The study of antioxidant capacity in various parts of Areca catechu L." <em>Naresuan University Journal: Science and Technology (NUJST)</em> [Online], Volume 14 Number 1 (1 August 2013)