I tried to calculate one of the problems in the textbook Gauge Theory of Elementary Particle Physics by Ta-Pei Cheng and Ling-Fong Li. On page 248 you can find the following calculation of a loop
The Principles of Quantum Theory, Dirac's Equation, and the Architecture of Quantum Field Theory
SkriptQFT1.pdf
Sabine Hossenfelder: Backreaction: Quantum Mechanics is wrong. There, I've said it.
Quantum Field Theory Demystified by David McMahon
QFT – How many fields are there? – Physics says what?
No-Nonsense Quantum Field Theory – No-Nonsense Books
Quantum Field Theory ✓ Applications and Implications
Quantum Field Theory, Mark Srednicki
Highlight, take notes, and search in the book
Quantum Field Theory
Feynman's quantum mechanics – Quantum field theory
Quantum Field Theory, Mark Srednicki