AMAD, S., YUENYONGSAWAD, S. and WATTANAPIROMSAKUL, C. 2016. Investigation of Antitubercular and Cytotoxic Activities of Fruit Extract and Isolated Compounds from Piper retrofractum Vahl. Walailak Journal of Science and Technology (WJST). 14, 9 (Aug. 2016), 731–739.