4.1.2.1. Video: Noun vs Verb Stress Patterns - YouTube - https://www.youtube.com/watch?v=3k7jN4kX4U

4.1.2.2. Video: English Word Stress: Nouns vs Verbs - YouTube - https://www.youtube.com/watch?v=0z1gT2g3w5s

4.1.2.3. Article: Noun and Verb Stress Patterns - EnglishClub - https://www.englishclub.com/pronunciation/noun-verb-stress.php

4.1.2.4. Article: Word Stress: Nouns vs Verbs - Hadar Shemesh - https://hadarshemesh.com/magazine/noun-verb-stress/