Hussain, M., Hussain, S. M., Afzal, M., Javid, A., Abdullah, S., Raza, S. A., & Iqbal, M. (2011). EFFECT OF LOW LEVEL OF MINERAL PHOSPHORUS AND MEDIUM LEVEL OF NITROGEN ON PLANKTONIC PRODUCTIVITY AND INCREASE IN FISH PRODUCTION. Journal of Animal and Plant Sciences, 21(4), 642-645.