PRAMILA GUPTA; I. MEHROTRA. SPIN AND ENERGY EFFECTS IN HEAVY QUARKONIUM SPECTROSCOPY. Open Access International Journal of Science and Engineering , [S. l.], v. 3, n. 4, p. 53–58, 2026. DOI: 10.65521/oaijse.v3i4.2525. Disponível em: https://journals.mriindia.com/index.php/oaijse/article/view/2525. Acesso em: 1 sep. 2026.