Naz, Sobia, Hoorish, and Sabahat Jan. “Dose-Dependent Effect of L-Methionine on Caffeine Accumulation in Callus Cultures under In Vitro Conditions”. Journal of Bioscience Studies 2, no. 2 (December 30, 2025): 14–19. Accessed September 5, 2026. https://jbioss.com/index.php/JBS/article/view/16.