H. D. Dao Huy, Phạm Thanh Bình, Lại Khắc Lãi, Tăng Cẩm Nhung, and Hồ Mậu Việt, “Proposing an optimal control system specifically focused on the black tea fermentation process”, JMST, vol. 93, no. 93, pp. 30–37, Feb. 2024.