Sinhababu, D P, S K Sarkar, and D K Choudhuri. 2011. “Structure of Hypothalamic Nuclei, the Nucleus Preopticus (NPO) and Its Seasonal Changes in Relation to Ovarian Cycle of a Freshwater Carp, Labeo Rohita (Ham.)”. Indian Journal of Fisheries 46 (2): 149-57. https://epubs.icar.org.in/index.php/IJF/article/view/8644.