Sanchez, M. C. A.; Avila, S. do L. M. de; Quartier-Oliveira, V. de P.; Ferreira, A. W. Malaria Serology: Performance of Six Plasmodium Falciparum Antigen Extracts and of Three Ways of Determining Serum Titers in IgG and IgM-ELISA . Rev. Inst. Med. Trop. São Paulo 1993, 35 (6), 495-502.