KUNWAR, L. B. Riemann Integral: Significance and Limitations. Academic Voices: A Multidisciplinary Journal, [S. l.], v. 7, p. 31–34, 2018. DOI: 10.3126/av.v7i0.21365. Disponível em: https://www.nepjol.info/index.php/AV/article/view/21365. Acesso em: 25 apr. 2024.