Sarsenbaev, B., МursaliyevaV., Sultanova, N., МамоnovL. and Ussenbekov, B. 2012. Phytochemical analysis of stevia and stachys on contents biological active substances. Chemical Bulletin of Kazakh National University. 65, 1 (Mar. 2012), 370-374. DOI:https://doi.org/https://doi.org/10.15328/chemb_2012_1370-374.