Wiyantoko, Bayu, and Astuti astuti. “Butterfly Pea (Clitoria Ternatea L.) Extract As Indicator of Acid-Base Titration”. Indonesian Journal of Chemical Analysis (IJCA) 3, no. 1 (March 15, 2020): 22–32. Accessed November 15, 2024. https://journal.uii.ac.id/IJCA/article/view/12017.