BHATTRAI, M. R. Riemann integral and its relation with Lebesgue integral. BIBECHANA, [S. l.], v. 7, p. 83–86, 2010. DOI: 10.3126/bibechana.v7i0.4051. Disponível em: https://nepjol.info/index.php/BIBECHANA/article/view/4051. Acesso em: 19 may. 2024.