K. H. L. Z. A. L. Zameer Ali Palh and G. A. S. Ghulam Murtaza Mastoi, “Studies of Fresh Water Toxic Phytoplanktonic (Microcystis) of Keenkjhar Lake, Thatta, Sindh, and Pakstan”, ijetst, vol. 2, no. 01, Jan. 2015.