N. T. Bich Hang, P. T. Ky, C. V. Minh, N. P. Thao and P. V. Kiem, Premnaodoroside A and 10-o-trans-p-methoxycinnamoylcatalpol, two iridoid glycoside derivatives from the leaves of Premna integrifolia L, VJChem 47 (2014) 230. DOI: https://doi.org/10.15625/4572.