U.B.Imomqulov, M.H.Imomov, X.X.Akbaraliyev, U.A.Nabijonov, and M.M.Mirzaabdullayev. “SUBSTANTIATION ANGLE OF INCIDENCE OF THE DEVICE WITH A CHANGING CURVILINEAR SURFACE TO THE DRUM”. International Journal on Integrated Education, Vol. 3, no. 12, Dec. 2020, pp. 481-3, doi:10.17605/ijie.v3i12.1065.