Optimization of Extraction Condition to Obtain Antioxidant Activity and Total Phenolic Content of Seagrass Thalassia hemprichii (Ehrenb.) Asch from Indonesia, Nopi, Nely Suryani, Anwar Effionora, and Nurhayati Tati , Pharmacognosy Journal, August 2018, Volume 10, Issue 5, p.958-962, (2018)