Preshahdin, N. A., N. A. Jani, and R. Iberahim. “Phytochemicals and Antibacterial Activity of Zingiber Zerumbet Growing in Negeri Sembilan, Malaysia”. Journal of Science and Mathematics Letters, vol. 11, no. 1, Feb. 2023, pp. 20-29, doi:10.37134/jsml.vol11.1.3.2023.