c언어를 무료로 배울 수 있는 사이트

https://eskeptor.tistory.com/2?category=928922

https://www.tutorialspoint.com/cprogramming/index.htm

http://blog.naver.com/PostView.nhn?blogId=brickbot&logNo=220458185346

https://m.blog.naver.com/sharonichoya/220326729368

https://studyc.tistory.com/3?category=609946

https://alegruz.imweb.me/blog/?q=YToyOntzOjEyOiJrZXl3b3JkX3R5cGUiO3M6MzoiYWxsIjtzOjQ6InBhZ2UiO2k6Mjt9&bmode=view&idx=3821836&t=board

http://www.soen.kr/

https://blog.naver.com/sharonichoya/220322588685

https://www.youtube.com/watch?v=5uFjnD88KBA&list=PL2P1Vm9k53HO5DnvKcm9N4zvFOB6dQ2rM

https://www.youtube.com/watch?v=ywMcjNBneIM

main.pdf

http://gauss.ececs.uc.edu/Courses/c4029/code/C-primer/c-primer.pdf