Ibtihal Thabit Jameel; Athraa Falih Hasan; Duaa Jasim; Fatima M. Aboud. Solving Inverse Cauchy Problems of the Helmholtz Equation Using Conjugate Gradient Based-Method: BICG, BICGSTAB And PCG. Acad. Sci. J. 2023, 1, 13-31.