Amaral, L. S., et al. “PARASITOLOGICAL INDICATORS OF CONTAMINATION AT SAND OF BEACHES AND MONITORING BY TRADITIONAL METHODS AND IMMUNOENZYMATIC ASSAY”. Revista Brasileira De Engenharia De Biossistemas, vol. 9, no. 4, Dec. 2015, pp. 304-11, doi:10.18011/bioeng2015v9n4p304-311.