Vairappan, C. S., O. J. Beng, T. Nagappan, J. Gobilik, and T. Ramachandram. “Essential Oil Profiles at Major Populations Zingiber Officinale Rosc. Utilized in Malaysia for Traditional Medicine”. Journal of Tropical Biology & Conservation (JTBC), vol. 9, no. 2, May 2016, doi:10.51200/jtbc.v9i2.246.