Amir, M., A. Khan, M. . Mujeeb, A. . Ahmad, S. . Usmani, and M. . Akhtar. “Phytochemical Analysis and in Vitro Antioxidant Activity of Zingiber Officinale”. Free Radicals and Antioxidants, vol. 1, no. 4, Dec. 2020, pp. 75-81, doi:10.5530/ax.2011.4.12.