Sách/BookAuthors: Theory Martin J. Osborne (2020)
The book focuses on the concepts of model and equilibrium. It states models and results precisely, and provides proofs for all results. It uses only elementary mathematics (with almost no calculus), although many of the proofs involve sustained logical arguments. It includes about 150 exercises.
With its formal but accessible style, this textbook is designed for undergraduate students of microeconomics at intermediate and advanced levels. 
