Wutticharoenmongkol, P., Sitthisan, S., & Kingkaew, Y. (2021). Fabrication of pH-Sensing Sodium Alginate Films Containing Clitoria Ternatea Linn. Extract and Drug Release Characteristics. Progress in Applied Science and Technology, 11(1), 38–45. https://doi.org/10.14456/past.2021.1