Nilles, M. L. D., & Rivera, W. L. (2009). Morphological characterization and phylogenetic analysis of balantidium coli isolated in the Philippines. Institute of Biology, College of Science, University of the Philippines Diliman.
Chicago-referens (17:e uppl.)Nilles, Ma. Lourdes D., och Windell L. Rivera. Morphological Characterization and Phylogenetic Analysis of Balantidium Coli Isolated in the Philippines. Quezon City: Institute of Biology, College of Science, University of the Philippines Diliman, 2009.
MLA-referens (9:e uppl.)Nilles, Ma. Lourdes D., och Windell L. Rivera. Morphological Characterization and Phylogenetic Analysis of Balantidium Coli Isolated in the Philippines. Institute of Biology, College of Science, University of the Philippines Diliman, 2009.