Vo , T. N., Hoang , M. H. and Nguyen , K. P. P. (2018) “Nitrogen-containing compounds from pseuderanthemum carruthersii var. Atropurpureum ”, Journal of Technical Education Science, 13(2), pp. 33–36. Available at: https://www.jte.edu.vn/index.php/jte/article/view/338 (Accessed: 7 April 2026).