1: http://www.dukeofdefinition.com/dangerous_game.pdf

2:https://fac.ksu.edu.sa/sites/default/files/the_diamond_necklace.pdf

3: https://www.newyorker.com/magazine/1954/04/10/the-five-forty-eight

4: https://www.umsl.edu/~alexanderjm/AVeryOldManwithEnormousWingsbyMarquez.pdf