Nasreen, S., R. Ahmed, M. Ullah, and M. Hoque. “Effect of N, P, K, and Mg Application on Yield and Fruit Quality of Mandarin (Citrus Reticulata)”. Bangladesh Journal of Agricultural Research, vol. 38, no. 3, Nov. 2013, pp. 425-33, doi:10.3329/bjar.v38i3.16969.