Ma Thi Bich Thao*, Nguyen Phuong, Tran Ha, Nguyen Thi Hong, Vu Van Lieu 2025. Optimisation of distillation process parameters for extraction of Tay Giang citronella essential oil by direct steam distillation method. Version B of Vietnam Journal of Science and Technology. 64, 10DB (Jun. 2025). DOI:https://doi.org/10.31276/VJST.64(10DB).56-62.