[1]
S. Labotano, T. Sukriawan, S. Aminah, D. S. Ahmar, T. Santoso, and M. Magfirah, “Utilization of Purple Trumpet Flower Extract (Ruellia Tuberosa L.) as an Alternative Acid-Base Titration Indicator”, J. Akademika Kimia, vol. 15, no. 2, pp. 150–158, May 2026.