DHRITIKESH CHAKRABARTY. Combined Set of Several Sets of Observations: Harmonic Mean. Partners Universal International Innovation Journal, [S. l.], v. 3, n. 1, p. 49–53, 2025. DOI: 10.5281/zenodo.14949601 . Disponível em: https://puiij.com/index.php/research/article/view/170. Acesso em: 25 mar. 2025.