Dzhanakhmetov O.K. Д. О., and Kudabaeva A. K. К. А. “Creating a Collection of Samples in the Ethnographic Style”. Рroblems of Engineering and Professional Education, vol. 31, no. 3, Mar. 2023, pp. 11-14, doi:10.32523/2220-685X-2015-31-3-11-14.