Darmadi Erwin Harahap, Eka Nurwani Ritonga, Qorry Hilmiyah Harahap, Msy.Nurhalimah, Muhammad Darwis, & Dodi Syahrin. (2026). Patchouli Oil Quality In Various Methods of Drying Plant Materials Nilam (Pogostemon cablin Benth). International Journal of Science and Environment (IJSE), 6(2), 916–920. https://doi.org/10.51601/ijse.v6i2.647