Siregar, I. F. ., Rismawaty, & Halimatus Syahdia Hasibuan. (2022). Patchouli Agroindustry Technology In Guo Batu Village, Mandailing Natal Regency, North Sumatera Province. Jurnal Riset Perkebunan, 3(2), 56–65. https://doi.org/10.25077/jrp.3.2.56-65.2022