Maxmudov Bakhriddin Juraevich, Bustonov Mansurjon Mardonakulovich, & Rakhimov Bahromjon Ibroximovich. (2020). BASIC CONCEPTS OF THE THEORY OF UNCERTAIN SETS AND ACTIONS RELATED TO INVESTMENT PROCESSES. International Engineering Journal For Research & Development, 5(5), 7. https://doi.org/10.17605/OSF.IO/E65HX