Amparado, E., & 		Jacinto, S.
2007 Oct 16.  Notochord in <i>Tilapia nilotica</i> Exposed to Sublethal Dose of Malathion, S[1, 2-Di(Ethoxycarbonyl)Ethyl] Dimethyl Phosphorothiolothionate. Science Diliman: A Journal of Pure and Applied Sciences. [Online] 4:1