Vu Thi Phuong Thao, Nguyen Duc Thanh, Nguyen Quoc Phi, Nguyen Thi Cuc and Nguyen Quang Minh 2025. An integrated TOPSIS and fuzzy logic model for evaluating the rationality of sloping land use types in Bac Kan province. Vietnam Journal of Science, Technology and Engineering. 67, 2 (Jun. 2025), 109-116. DOI:https://doi.org/10.31276/VJSTE.2024.0060.