The Use of Telang Flower Extract (Clitoria ternatea L.) as a Natural Universal pH Indicator coupled with Digital Image Colorimetry. pendipa. jurnal. pendik. sains [Internet]. 2024 Dec. 1 [cited 2025 Jun. 19];8(3):480-7. Available from: https://ejournal.unib.ac.id/pendipa/article/view/38297