Khatun, R.; Islam, A.; Majid, F. Study of Water Hyacinth of Bangladesh IV: Comparative Study of Pollen Grains and Development of Seed in Both Long and Short Petioled Forms of <i>Eichhornia crassipes</I> (Mart.) Solms-Laubach. Bangladesh J. Sci. Ind. Res. 2007, 41, 189-202.