Exercises and Problems in Calculus by John M. Erdman (Portland State University)
https://drive.google.com/file/d/1c257JfJnunu8K6jNqnhsB5WtHhj1871x/view?usp=sharing
https://drive.google.com/file/d/1c257JfJnunu8K6jNqnhsB5WtHhj1871x/view?usp=sharing