INYANG, E. P., Akpan, I. O., Inyang, E. P., & William, E. S. (2021). Approximate solutions of the Schrödinger equation with Hulthén-Hellmann Potentials for a Quarkonium system. Revista Mexicana De Física, 67(3 May-Jun), 482–490. https://doi.org/10.31349/RevMexFis.67.482