Varghese, C.P. et al. 2011. Antioxidant Activity of Hydroalcoholic Extract of Labisa Pumila var. Alata, an Indigenous Plant of Malaysia. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN). 4, 2 (Aug. 2011), 1418–1422. DOI:https://doi.org/10.37285/ijpsn.2011.4.2.8.