Guvendi, Burcu, and Rifat Yagmur. “The Relationship Between athletes’ Belief in Nutritional Supplements and Disengagement of Sports Ethics With Doping”. Progress in Nutrition, vol. 22, no. 1-S, May 2020, pp. 125-30, https://doi.org/10.23751/pn.v22i1-S.9804.