B. HAKYEMEZ, H. and KAVDIR, Y. (2010) “Effects of Some Forage Crops and Mixture on Sunflower Yield and Soil Nitrogen Content”, Asian Journal of Chemistry, 20(3), pp. 2251–2256. Available at: https://asianpubs.org/index.php/ajchem/article/view/19237 (Accessed: 20 July 2024).