PORTNA, K. P.; VASYUK, S. O. β-alanine spectrophotometric determination in reaction with sodium salt of 1,2-naphthoquinone-4-sulfonic acid. Zaporozhye Medical Journal, [S. l.], v. 17, n. 1, 2015. DOI: 10.14739/2310-1210.2015.1.39870. Disponível em: http://zmj.zsmu.edu.ua/article/view/39870. Acesso em: 6 may. 2024.