[1]
Pitcha-on Maisuthisakul and Rungnaphar Pongsawatmanit, “Effect of Sample Preparation Methods and Extraction Time on Yield and Antioxidant Activity from Kradonbok (Careya sphaerica Roxb.) Leaves”, Agr. Nat. Resour., vol. 38, no. 5, pp. 8–14, Oct. 2004.