Yang, Xianyu, and Xin Gao. “Introduction of an Efficient Method for the Observation of Living Paramecium”. IJRDO- Journal of Educational Research 3, no. 10 (October 30, 2018): 27-29. Accessed October 5, 2024. http://cpcontacts.ijrdo.org/index.php/er/article/view/2539.