Effects of the Timing and the Number of Sprays on Cotton Yields in Sind: An Exploratory Analysis. The Pakistan Development Review, [S. l.], v. 24, n. 2, p. pp.173–181, 1985. DOI: 10.30541/v24i2pp.173-181. Disponível em: https://www.thepdr.pk/index.php/pdr/article/view/674. Acesso em: 6 dec. 2025.