Hoa, V. T. (2023) “Exploring Plant Species in Vietnam for the Production of pH Indicator Paper: http://www.doi.org/10.26538/tjnpr/v7i10.25”, Tropical Journal of Natural Product Research (TJNPR), 7(10), pp. 4894–4901. Available at: https://tjnpr.org/index.php/home/article/view/2838 (Accessed: 14 July 2024).