ugli, J. B. K., Beknazar, S., Islombek, U., Aslbek, U., & Madamin, T. (2023). Analysing Tourism Expenses using Mathematical Modelling. Journal of Contemporary Business Law & Technology: Cyber Law, Blockchain, and Legal Innovations, 1(2), 29–34. https://doi.org/10.61796/ejcblt.v1i2.91