OLUNKWA†, C. .; OSU, B.; EMENYONU*†, S. On the volatility estimation of daily price returns of Nigerian Stock Market. International Journal of Mathematical Analysis and Modelling, [S. l.], v. 6, n. 1, 2023. Disponível em: http://tnsmb.org/journal/index.php/ijmam/article/view/83. Acesso em: 25 aug. 2026.