Erwin, E. et al. 2015. Phytochemical Test, Toxicity and Antioxidant Activity Leaves Kerehau (Callicarpa longifolia Lam.) With DPPH Method. Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta). 8, 1 (Jun. 2015), 52–59. DOI:https://doi.org/10.20956/ica.v8i1.2481.