Kudaibergenova, B., M. Omirzakov, Sh. Zhumagalieva, M. Beisebekov, and Zh. Abilov. 2011. “Immobilization of Medical Drug to the Nanocomposite on the Basis of Bentonite Clay and Polyvinyl Alcohol”. Chemical Bulletin of Kazakh National University 61 (1), 160-63. https://bulletin.chemistry.kz/index.php/kaznu/article/view/878.