Ajmal, F., M. Akram, R. M. Iqbal, M. Hussain, M. W. Hassan, M. Abdullah, and A. Wasaya. “Effect of Exogenous Application of Micronutrients on Growth and Productivity of Cotton (Gossypium Hirsutum L.) Crop”. Bioscience Journal, vol. 34, no. 2, Mar. 2018, pp. 302-11, doi:10.14393/BJ-v34n2a2018-36925.