Ahmed, B., Sultana, M., Zaman, J., Paul, S.K., Rahman, M.M., Islam, M.R. and Majumdar, F. 2015. Effect of Sowing Dates on the Yield of Sunflower. Bangladesh Agronomy Journal. 18, 1 (Nov. 2015), 1–5. DOI:https://doi.org/10.3329/baj.v18i1.25561.