MICHAEL , O. G. . Mathematical Techniques of Modelling Salary-Based Health Care Contribution. Nepal Journal of Mathematical Sciences, [S. l.], v. 2, n. 2, p. 97–112, 2021. DOI: 10.3126/njmathsci.v2i2.40129. Disponível em: https://www.nepjol.info/index.php/njmathsci/article/view/40129. Acesso em: 8 may. 2024.