- Burgess: Classical covariant fields (pdf)
- Burgess: SM - a primer (pdf)
- Cheng: Gauge theory of elementary particle physics (djvu)
- Halzen: Quarks and leptons (djvu)
- Lawrie: A unified grand tour... (pdf)
- Maggiore: A modern intro to qft (pdf)
- Peskin: Intro to QFT (pdf)
- Ramond: QFT Primer (djvu)
- Rubakov: Classical theory of gauge fields (pdf)
- Weinberg: QFT, Vol2 (djvu)
- Weinberg: QFT, Vol3 (djvu)
- Zee: QFT (djvu)