Anh, C. T., Huy, N. Q., & Khang, V. H. (2020). EXPLOIT MINING HIGH UTILITY ITEMSETS WITH NEGATIVE UNIT PROFITS FROM VERTICALLY DISTRIBUTED DATABASES. Dalat University Journal of Science, 10(3), 25-38. https://doi.org/10.37569/DalatUniversity.10.3.666(2020)