OPTIMIZATION OF EXTRACTION WITH SOLVENT VARIATION BASED ON TOTAL FLAVONOID CONTENT IN WUNGU LEAVES (Graptophyllum pictum (L.) Griff): A LITERATURE REVIEW. HRJ [Internet]. 2024 Jul. 30 [cited 2025 Apr. 3];1(03):22-7. Available from: https://journal.forumsdgs.or.id/index.php/hrj/article/view/12