M. J. Baloch, M. B. Kumbher, W. A. Jatoi, and N. Fatima, “Estimates of Genetic Parameters from Line x Tester Mating Design for Some Quantitative Traits in Upland Cotton, Gossypium hirsutum L.: Line x Tester Analysis of G. hirsutum”, Pakistan Journal of Scientific & Industrial Research, vol. 51, no. 1, pp. 36–41, Feb. 2008.