To, D. C., M. H. Tran, P. H. Nguyen, N. T. Ai Nhung, and T. T. T. Nguyen. “Arginase II Inhibitory Activity of Phenolic Compounds from Caesalpinia Sappan L.: http://www.doi.org/10.26538/tjnpr/V7i4.12”. Tropical Journal of Natural Product Research (TJNPR), vol. 7, no. 4, May 2023, pp. 2744-8, https://www.tjnpr.org/index.php/home/article/view/1873.