Alfasane, M. A., M. Khondker, and Z. T. Begum. “Effects of Water Depth on the Growth of Nelumbo Nucifera Gaertn. Seedlings”. Dhaka University Journal of Biological Sciences, vol. 19, no. 2, Nov. 2011, pp. 111-8, doi:10.3329/dujbs.v19i2.8952.