AKANNI, Saheed Busayo; GARBA, Mohammed Kabir; OSOBASE, Angela Abidemi. On Instrumental Variable Regression Method for Estimating Econometric Model Perturbed with Endogenous Variable. Sigma&Mu: Journal of Mathematics Education, Mathematics, Statistics and Data Science, [S. l.], v. 4, n. 1, p. 38–49, 2026. DOI: 10.56566/sigmamu.v4i1.621. Disponível em: https://journals.balaipublikasi.id/index.php/sigmamu/article/view/621. Acesso em: 13 apr. 2026.