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