Aтaш Б. М., Құрaнбек Ә. A., and Н. М. Тәттібек. “The Evolution of Spirituality and the Moral Beginning in the Ancient Turkic’s Worldview”. Journal of Oriental Studies, vol. 80, no. 1, Nov. 2017, pp. 26-34, https://bulletin-orientalism.kaznu.kz/index.php/1-vostok/article/view/872.