Verma, Mukesh Kumar, Rahul Varshney, Subhash Kumar Yadav, and Raj K. Gangele. “On Optimal Estimation Techniques for Supply Chain Management With Stratified Sampling”. Brazilian Journal of Biometrics 44, no. 1 (March 9, 2026): e-44899. Accessed April 1, 2026. http://revistalituras.ppgletras.ufla.br/index.php/BBJ/article/view/899.