Shahjahan, Reza Md, et al. “Tissue Specific Esterase Isozyme Banding Pattern in Nile Tilapia (<i>Oreochromis niloticus< I>)”. University Journal of Zoology, Rajshahi University, vol. 27, Jan. 2009, pp. 1-5, doi:10.3329/ujzru.v27i0.1943.