This document contains a list of references to images of different occupations including astronaut, policeman, chef, secretary, photographer, detective, doctor, surgeon, architect, firefighter, nurse, painter, pilot, plumber, postman, sailor, singer, teacher, waiter, and writer. Each reference provides the image URL source and was taken from free stock photo sites.

1. REFERENCES
 Real English 24 b - Dream Job with subtitles. Taken from:
https://www.youtube.com/watch?v=wL3CFtW8WE0
 People song - English with Korean Subtitles. Taken from:
https://www.youtube.com/watch?v=JBXaupIJHr8
 Present Simple. Taken from: https://www.curso-
ingles.com/aprender/cursos/nivel-basico/verb-tenses-present/present-
simple
 Astronaut. Taken from:
https://cdn.pixabay.com/photo/2016/07/25/17/34/astronaut-
1540938_960_720.png
 Policeman. Taken from: https://www.publicdomainpictures.net/en/view-
image.php?image=184679&picture=a-laugh-every-day-105
 Chef. Taken from: https://pixabay.com/en/boy-cooking-chef-fork-pan-
2756381/
 Secretary. Taken from: https://pixabay.com/en/business-secretary-
work-office-2294966/
 Photographer. Taken from:
https://cdn.pixabay.com/photo/2016/04/01/08/34/camera-
1298800_960_720.png
 Detective. Taken from:
https://cdn.pixabay.com/photo/2016/05/30/14/23/detective-
1424831_960_720.png
 Doctor. Taken from:
https://cdn.pixabay.com/photo/2016/09/28/02/35/doctor-
1699656_960_720.jpg
 Surgeon. Taken from:
https://cdn.pixabay.com/photo/2017/01/31/16/55/doctor-
2025514_960_720.png
 Architect. Taken from:
https://cdn.pixabay.com/photo/2014/03/25/15/18/engineer-
296438_960_720.png
 Firefighter. Taken from:
https://cdn.pixabay.com/photo/2013/07/12/17/01/firefighter-
151712_960_720.png
 Nurse. Taken from:
https://cdn.pixabay.com/photo/2017/11/03/20/11/nurse-
2915543_960_720.jpg
 Painter. Taken from:
https://cdn.pixabay.com/photo/2012/04/02/13/05/painting-
24439_960_720.png
 Pilot. Taken from:
https://cdn.pixabay.com/photo/2013/07/13/12/40/pilot-
160084_960_720.png

2.  Plumber. Taken from:
https://cdn.pixabay.com/photo/2012/04/16/11/39/plumber-
35611_960_720.png
 Postman. Taken from:
https://cdn.pixabay.com/photo/2013/07/12/17/01/postman-
151706_960_720.png
 Sailor. Taken from:
https://cdn.pixabay.com/photo/2016/05/30/14/15/sailor-
1424820_960_720.png
 Singer. Taken from:
https://cdn.pixabay.com/photo/2017/09/09/14/12/singer-
2732142_960_720.png
 Teacher. Taken from:
https://cdn.pixabay.com/photo/2017/11/07/23/55/teacher-
2928817_960_720.jpg
 Waiter. Taken from:
https://cdn.pixabay.com/photo/2013/07/12/15/51/waiter-
150452_960_720.png
 Writer. Taken from:
https://cdn.pixabay.com/photo/2015/06/02/17/18/writer-
795286_960_720.png