KAMEL, Erian G.;BURGU, Ayşe2019-04-182019-04-181300-0861http://hdl.handle.net/20.500.12575/58223https://doi.org/10.1501/Vetfak_0000001042EFFECT OF PARAMPHlSTOMUM CERCARIAE ON THE HEART RATE OF GYRAULUS LAEVIS (ALDER)