sina ebrahimi, elham farhadfar ,alireza balaghi , reza zarei. “Investigation of the Acute Effect of Beetroot Supplement on Certain Physiological Indices in National Mountaineering Athletes”. Pegem Journal of Education and Instruction 14, no. 1 (March 10, 2024): 381–392. Accessed September 23, 2025. https://www.pegegog.net/index.php/pegegog/article/view/4127.