Cao, S.T. and Nguyen, L.A. 2019. Incorporating Stratified Negation into Query-Subquery Nets for Evaluating Queries to Stratified Deductive Databases. Computing and Informatics. 38, 1 (Apr. 2019), 19–56. DOI:https://doi.org/10.31577/cai_2019_1_19.