Correlation of Total Phenolic, Flavonoid and Carotenoid Content of Phyllanthus emblica Extract from Bandung with DPPH Scavenging Activities, Fitriansyah, Sani Nurlaela, Aulifa Diah Lia, Febriani Yessi, and Sapitri Emi , Pharmacognosy Journal, March 2018, Volume 10, Issue 3, p.447-452, (2018)