Tham khảo Thứ tự toàn phần

Garrett Birkhoff (1967). Lattice Theory. Colloquium Publications. 25. Providence: Am. Math. Soc.
Brian A. Davey; Hilary Ann Priestley (1990). Introduction to Lattices and Order. Cambridge Mathematical Textbooks. Cambridge University Press. ISBN 0-521-36766-2. LCCN 89009753.
Fuchs, L (1963). Partially Ordered Algebraic Systems. Pergamon Press.
George Grätzer (1971). Lattice theory: first concepts and distributive lattices. W. H. Freeman and Co. ISBN 0-7167-0442-0
Halmos, Paul R. (1968). Naive Set Theory. Princeton: Nostrand.
John G. Hocking and Gail S. Young (1961). Topology. Corrected reprint, Dover, 1988. ISBN 0-486-65676-4
Rosenstein, Joseph G. (1982). Linear orderings. New York: Academic Press.
Schmidt, Gunther; Ströhlein, Thomas (1993). Relations and Graphs: Discrete Mathematics for Computer Scientists. Berlin: Springer-Verlag. ISBN 978-3-642-77970-1.

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