The study of antioxidant capacity in various parts of Areca catechu L. - Wetwitayaklung, Penpun; Phaechamud, Thawatchai; Limmatvapirat, Chutima; Keokitichai, Sindhchai (Naresuan University Journal: Science and Technology (NUJST); Vol 14 No 1 (2006): January-April 2006)