Usmоnov Q. ., and Хaydarov A. . “The Methods for Implementing Engineering and Preparatory Works and Improvement in Cities”. Central Asian Journal of Theoretical and Applied Science, vol. 2, no. 11, Nov. 2021, pp. 218-25, https://www.cajotas.casjournal.org/index.php/CAJOTAS/article/view/295.