Sriwichai, A. ., Pramokchon, P., & Khaodee, W. (2025). THE INVENTION OF A SIMPLE ACID-BASE TEST KIT USING REAGENT EXTRACTED FROM LEAVES LOVE PLANT . PSRU Journal of Science and Technology, 10(1), 56–69. retrieved from https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/256268