1. Statistical Methods in Medical Research: Blackwell Scientific Publications;ARMITAGE P.,1974
2. Interações entre especies de Biomphalaria, moluscos transmissores da esquistossomose no nordeste do Brasil;BARBOSA-FIGUEIREDO C.,1989
3. Possible competitive displacement and evidence of hybridization, between two Brazilian species of planorbid snails;BARBOSA F. S.;Malacologia,1973
4. Competitive displacement of Biomphalaria glabrata by B. straminea;BARBOSA F. S.;Memórias do Instituto Oswaldo Cruz,1987
5. New field observations on the competitive displacement between two species of planorbid snail inhabiting north eastern Brazil;BARBOSA F. S.;Memórias do Instituto Oswaldo Cruz,1981