Аубакиров , Е. Н., and G. A. Adayeva. “The Concept of Labor in the History of Social Thought”. Bulletin of L.N. Gumilyov Eurasian National University. Historical Sciences. Philosophy. Religious Studies Series., vol. 135, no. 2, June 2021, pp. 91-99, doi:10.32523/2616-7255-2021-135-2-91-99.