Sufriadi, E., H. Meilina, A. Munawar, A. O. Ezzat, and R. Idroes. “Chemometric Classification Model for Assessing Chemical Composition Alterations in Patchouli Oil Post Zeolite Adsorption”. Heca Journal of Applied Sciences, vol. 1, no. 2, Sept. 2023, pp. 37-47, doi:10.60084/hjas.v1i2.86.