Bashi, Z., زهراء, Jankeer, M., & منى. (2008). Effectiveness of the enzyme cytosine deaminase in the free living ciliary organism Tetrahymena pyriformis (Ehrenberg, 1830). Journal of Education and Science (JES), 21(3), 15–27. https://doi.org/10.33899/edusj.2008.56042