Bacillus sp. As a Decomposition Agent in The Maintenance of Brachionus rotundiformis Which Uses Raw Fish As a Source of Nutrition von Napitupulu, Hatopan G., Rumengan, Inneke F. M., Wullur, Stenlly, Ginting, Elvy L., Rimper, Joice R. T. S. L., Toloh, Boyke H.

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