Problem-Heavy References in Linear/Integer/etc. Programming and Operations Research I am reaching out for problem-heavy references in Linear / Integer / Mixed-Integer (MIP) / Non-Linear / Network Programming and Operations Research (and Linear Algebra as it pertains to the programming and OR subjects).
I find it easier to learn with problems I can carry around and do, but I tend to complete all my coursework early in the semester and need more material to study from to compensate the free time. Any assistance in this would be genuinely appreciated!
 A: I recommend Model Building in Mathematical Programming by H. Paul Williams. Formulations, SAS code, and output for all 29 examples are included in the SAS documentation here.
A: Upon asking my Professors, and looking around online myself, I have a semi-comprehensive list of resources that could work well for self-studying OR and Linear/Non-Linear/etc. Programming:

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*Foundations of Operations Research Practice exercises: Linear Programming by M. Ciavotta (2019)

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*Contains thirteen pages of nine exercises and solutions that can serve as a supplement/review



*Linear Programming Exercises by Lieven Vandenberghe ($2015$; University of California)

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*Contains $98$ exercises that cover almost all intro/advanced levels of Linear Programming



*Operations Research - Sample Homework Assignments by Dennis Bricker ($1997$; University of Iowa)

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*Contains $87$ pages of OR models and various scenarios.



*Problems and exercises in Operations Research by Leo Liberti ($2007$; École Polytechnique)

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*Thirty-three pages of various Linear/Network/Integer problems



*Operations Research Models and Methods (Website)
