Elastase Inhibitory Activity, Determination of Total Polyphenol and Determination of Total Flavonoids and Pharmacognosy Study of Faloak Plant (Sterculia quadrifida R.Br) from East Nusa Tenggara-Indonesia, Radjah, Sofiah Yunita, Putri Kunia Sari Setio, and Elya Berna , Pharmacognosy Journal, May 2021, Volume 13, Issue 3, p.758-764, (2021)