Statistical Estimation Of Useful Life Of Tubewells. The Pakistan Development Review, [S. l.], v. 12, n. 1, p. pp.81–90, 2022. DOI: 10.30541/v12i1pp.81-90. Disponível em: https://thepdr.pk/index.php/pdr/article/view/302. Acesso em: 9 jun. 2025.