KEERTHANA, M.; CELESTIN, Mbonigaba; PATHIRAJA, Krishantha; GIDISU, Jerryson Ameworgbe. Mathematical Modeling of VAT Systems to Assess Their Impact on Business Operations and Consumer Spending. Journal of UTEC Engineering Management, [S. l.], v. 3, n. 1, p. 218–231, 2025. DOI: 10.3126/juem.v3i1.84914. Disponível em: https://www.nepjol.info/index.php/juem/article/view/84914. Acesso em: 7 dec. 2025.