DHRITIKESH CHAKRABARTY. Arithmetic, Geometric, Harmonic and Quadratic Unbiasedness in Estimation . Partners Universal International Innovation Journal, [S. l.], v. 3, n. 4, p. 24–32, 2025. DOI: 10.5281/zenodo.17060844. Disponível em: https://puiij.com/index.php/research/article/view/194. Acesso em: 1 may. 2026.