[1]Ngoan, B.T. et al. 2015. A polyhydroxylated sterol and a saponin isolated from the starfish culcita novaeguineae. <i>Vietnam Journal of Chemistry</i>. 53, 2e (May 2015), 23–27. DOI:https://doi.org/10.15625/0866-7144.2015-2e-006.