Using Carbon Stable Isotope to Evaluate Water Efficiency Following Seasonal Variation of Coffee Leaf in Lamdong Province, Vietnam - Vo Thi Mong Tham; Thien, Tran Quang; Thang, Le Xuan; Dao, Nguyen Minh; Anh, Tran Tuan; Trung, Phan Quang; Lan, Nguyen Thi Huong; Nghia, Nguyen Huu; Hai, Phan Son; Huong, Tuong Thi Thu (Physics of Particles and Nuclei Letters, 2025)