SINAN O. AL-SALIHI; ALAA N. SALMAN. Feeble ring. Tikrit Journal of Pure Science, [S. l.], v. 25, n. 1, p. 134–138, 2020. DOI: 10.25130/tjps.v25i1.223. Disponível em: https://www.tjpsj.org/index.php/tjps/article/view/223. Acesso em: 20 dec. 2025.