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Abour H. Cherif, Linda Michel, Farahnaz Movahedzadeh, Robert Aron, Gerald Adams, Sharron Jenkins; Defending the Lowly Prokaryotes: New Challenges for BIOGaia Learning Activity. The American Biology Teacher 1 August 2009; 71 (6): 346–353. doi: https://doi.org/10.2307/20565330
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