Binodh, Ashish K, et al. “Inter-Relationship Between Combining Ability Effects for Oil and Yield Traits in Sunflower (Helianthus Annuus)”. The Indian Journal of Agricultural Sciences, vol. 82, no. 9, Sept. 2012, pp. 808–10, https://doi.org/10.56093/ijas.v82i9.23836.