APPLICABILITY OF HULTHÉN-HELLMANN POTENTIAL TO PREDICT THE MASS-SPECTRA OF HEAVY MESONS VIA SERIES EXPANSION METHOD. Nigerian Journal of Physics, [S. l.], v. 30, n. 2, p. 140–145, 2021. Disponível em: https://njp.nipngr.org/index.php/njp/article/view/105. Acesso em: 19 may. 2025.