Doroodian, M., Sharghi, Y., Alipour, A. and Zahedi, H. 2016. Yield and Yield Components of Wheat as Influenced by Sowing Date and Humic Acid. International Journal of Natural Sciences. 5, 1 (Jul. 2016), 8–14. DOI:https://doi.org/10.3329/ijns.v5i1.28605.