Tectona Grandis Leaves: Determination of Total Flavonoid Content, Phenolic Content, Characterization of the Leaves, and Compound Identification in GC-MS, Budianto, Pepi, Suroto Suroto, Wasita Brian, and Mirawati Diah Kurnia , Pharmacognosy Journal, March 2023, Volume 15, Issue 1, p.165-170, (2023)