3조_펫플레이스_1차발표자료.pdf
https://www.youtube.com/watch?v=J5LVdbhWyPA
3조_펫플레이스_발표_수정본.pdf
https://www.youtube.com/watch?v=5IldB9ruDNo
https://www.youtube.com/watch?v=AVLAbwGHlcM