For a start, you can take a look to:

https://www.wiley.com/en-us/Introducing+Physical+Geography%2C+6th+Edition-p-9781118396209

Dear Dr. Silva, Pl. find few titles of some reference books on Physical Geography, enumerated below:

1) Fundamentals of Physical Geography (Pidwirny, M.J.)

2) Fundamentals of Physical Geography (Petersen, J.F., Sack, D. and Gabler, R.E.)

3) Essentials of Physical Geography (Gabler, R.E., Petersen J.F., Trapasso, L.M.)

4) Physical Geography - A Landscape Appreciation (Hess, D.)

5) Physical Geography - The Basics (Holden, J.)

6) Discovering Physical Geography (Arbogast, A.F.)

7) Exploring Physical Geography (Reynolds, S.J., Rohli, R.V., Johnson, J.K., Waylen, P.R. and Francek, M.A.)

8) Introducing Physical Geography (Strahler, A.)

9) Physical Geography - The Key Concepts (Huggett, R.)

With regards

AK

Thank you dear Castillo!

Thank you dear Kohli!

It helped a lot.

What area of physical geography