Kudaybergenov, K. K., Ongarbayev, E. K., Mansurov, Z. A., & Tulepov, M. I. (2013). The study of microstructures of the rice husk and apricot stone for wastewater treatment. International Journal of Biology and Chemistry, 6(2), 35–39. Retrieved from https://ijbch.kaznu.kz/index.php/kaznu/article/view/97