Keller, J. L., Housh, T. J., Hill, E. C., Smith, C. M., Schmidt, R. J., & Johnson, G. O. (2019). The effects of Shilajit supplementation on fatigue-induced decreases in muscular strength and serum hydroxyproline levels. J Int Soc Sports Nutr.

Keller, Joshua L., Terry J. Housh, Ethan C. Hill, Cory M. Smith, Richard J. Schmidt, i Glen O. Johnson. "The Effects of Shilajit Supplementation On Fatigue-induced Decreases in Muscular Strength and Serum Hydroxyproline Levels." J Int Soc Sports Nutr 2019.

Keller, Joshua L., et al. "The Effects of Shilajit Supplementation On Fatigue-induced Decreases in Muscular Strength and Serum Hydroxyproline Levels." J Int Soc Sports Nutr 2019.